The weights per unit length are $w_1=5l\frac{b}{f}t$ and $w_2=11l\frac{b}{f}t,$ while the distance $x=4ft$ and the magnitude of force $F_1=16lb.$

Replace the loading acting on the beam with an equivalent resultant force. Specify its location, as a horizontal distance measured from point $B.$ Provide your answer in units of ft $,$ accurate to at least two decimal points. $($Enter your answer as a positive value.$)$

$5\mathrm{.}25$

Correct Answer: $8\mathrm{.}97$