$\backslash$table$[[HI=3246\mathrm{.}99ft,,,,,,,],[20+00,Lt,\frac{4\mathrm{.}8}{50},\frac{3\mathrm{.}6}{28},\frac{5\mathrm{.}4}{0},\frac{5\mathrm{.}3}{15},\frac{5\mathrm{.}8}{32},\frac{6\mathrm{.}3}{50}$

$26\mathrm{.}14$ From the following excerpt of field notes, plot the cross section on graph paper and superimpose on it a design template for a $30-$ft$-$wide level roadbed with fill slopes of $1-1/2$:$1$ and a subgrade elevation at centerline of $3250\mathrm{.}26$ ft$.$ Calculate slope intercepts and determine the end area graphically by coordinate method.