Answer:
$4,762.00
Step-by-step explanation:
The applicable formula is the formula for calculating future values.
Fv= P( I+ r )^ n
where Fv= $100,000
p= principal amount
r= interest rate : 7% or 0.07
n= time or number of period : 65 years - 20 year
$100,000= p x ( 1+0.07)^45
$100,000= p x (1.07)^45
$100,000 = p21.00245
p=$100,000/21.00245
p=$4,761.904
Principal = $ 4,762.00