You have just received a windfall from an investment you made in a friend's business. He will be paying you $$12,320$ at the end of this year, $$24,640$ at the end of the following year, and $$36,960$ at the end of the year after that $($three years from today$).$ The interest rate is $14\mathrm{.}8\%$ per year.

a$.$ What is the present value of your windfall?

b$.$ What is the future value of your windfall in three years $($on the date of the last payment$)?$

a$.$ What is the present value of your windfall?

The present value of your windfall is $$.($Round to the nearest cent.$)$