You work in the capital budgeting project of your firm and you have been asked to convert a real cost of capital of $15\%$ into a nominal cost of capital. The expected rate of inflation is $4\%.$ What is the nominal cost of capital? Express your cost of capital answer in decimal format and accurate to $4$ decimal places $($e$.$g$.,0\mathrm{.}023450$ should be entered as $0\mathrm{.}0235).$