Answer: $71.95
Step-by-step explanation:
The futures price is the future value of the current stock price:
Future value = Current price * ( 1 + rate) ^ number of years
rate = 2.5%
Number of years = 3/12 months = 0.25 years
72.4 = Current price * (1 + 2.5%)⁰.²⁵
72.4 = Current price * 1.006192246325635997077792185601
Current price = 72.4 / 1.00619224632563599707779218560
= $71.95