Answer:
She must invest $75732.63
Explanation:
Well firstly we look at the problem in 4 years time and start calculating the present value in four years.
using a financial calculator
n= 6, I= 15% , PMT = cash withdrawals = $35000, Fv = 0 pv =132456.89
that we take that Present value in four years make it future value in current year
Fv = 132456.89, with same data and compute new present value= 75732.63