Problem $06\mathrm{.}017-$ Normal and shearing stresses in a beam

For the wide$-$flange beam with the loading shown, determine the largest load $P$ that can be applied, knowing that the maximum normal stress is $22$ ksi and the largest shearing stress using the approximation ${}_m=\frac{V}{A_{\text{w}\text{e}\text{b}}}$ is $14\mathrm{.}5$ ksi $.$

The largest load $P$ is $|$kips$.$