What amount is required to purchase an annuity that pays $$4000$ at the end of each quarter for the first five years and then pays

$$2500$ at the beginning of each month for the subsequent $15$ years? Assume that the annuity payments are based on a rate of return

of $4\mathrm{.}8\%$ compounded quarterly. $($Do not round intermediate calculations and round your final answer to $2$ decimal places.$)$

The amount

$$254745\mathrm{.}5$