Compute the price of a zero-coupon bond (ZCB) that matures at timet = 10 and that has face value 100.

I completed the above question and came to the correct answer of 61.62. Im having trouble with the question below.

Compute the price of a forward contract on the zero coupon bond ($61.62) of the previous question where the forward contract matures at timet=4.

Submission Guideline:Give your answer rounded to 2 decimal places. For example, if you compute the answer to be 73.2367%, submit 73.24.