Answer:
$71,644.27
Step-by-step explanation:
Future value of the deposit in 19 years = Monthly deposit * [(1 + interest rate/12)^12*No. of years - 1] / (interest rate/12
= $90 * [(1 + 10%/12)^12*19 - 1] / (10%/12)
= $90 * [6.63346333924 - 1] / 0.008333
= $90 * 6.63346333924/0.008333
= $90 * 796.0474
= $71644.269835
= $71,644.27