Set humanoid avatar pose to it's last frame of various animations instantly

Hello,

I have an issue involving a dynamically scalable avatar and several dozen animations.

The issue is that I need to create a list of the positions of each hand at the last frame of each animation.
This needs to be done at runtime since the avatar's height changes with a scale slider, so just going to the frame on the animation scrubber and checking the position won't do.

I thought I would be able to use the following script, but the results are all off by a lot.

Code (CSharp):

1. IEnumerator addTargetPositionToList(){
2.  
3.         Ghost.enabled = true;
4.         for (int i = 0; i < states.Count; i++) // 12 states
5.         {
6.             animator.SetBool("PlayingAnimation", true);
7.  
8.             // set animation to last frame
9.             animator.CrossFade(states[i], -0f,0 , 1);
10.  
11.  
12.             yield return new WaitForSeconds(0.1f);
13.  
14.             // append the target positions to the array. 24 positions total
15.             leftHandTargets.Add(leftHand.position);
16.             rightHandTargets.Add(rightHand.position);
17.         }
18.  
19.  
20.     }

Is there a convenient way to get the last state of an animation? CrossFade just isn't working well.