Answer:

PV = FV / (1+ r₁)ⁿ * (1+ r₂)ⁿ * (1+ r₃)ⁿ

PV = Present value

FV = Future value = 75348

r₁ = 12% for the first year and n = 1

r₂ = 15% for second year and n = 1

r₃ = 17% for third year and n = 1

PV = FV / (1+ r₁)ⁿ * (1+ r₂)ⁿ * (1+ r₃)ⁿ

= 75348 / (1+ 0.12)¹ * (1+ 0.15)¹ * (1+ 0.17)¹

= 75348 / (1.12) * (1.15) * (1.17)

= 75348 / 1.50696

= 50000

The amount of money you should invest today is 50000