Falco Inc. financed the purchase of a machine with a loan at $4\mathrm{.}58\%$ compounded quarterly. This loan will be settled by making payments of $$9,400$ at the end of every quarter for $7$ years.

a$.$ What was the principal balance of the loan?

$$0\mathrm{.}00$

Round to the nearest cent

b$.$ What was the total amount of interest charged?

$$0\mathrm{.}00$