An instrument is set over point $"$Q$"$ with a $5\mathrm{.}69$ ft$.$ H$.$I. with an

engineering station of $16+17\mathrm{.}18$ A vertical angle of $-4{48}^{\text{'}}{31}^{\text{'}\text{'}}$ and a

slope distance of $216\mathrm{.}84$ ft $.$ was taken to a rod $4\mathrm{.}93$ ft $.$ above point

$"R".$ The elevation of point $"R"$ is $187\mathrm{.}48$ ft $.$ What is the elevation

of point $"Q"?$ What is the engineering station at point $"R"($You

must draw a sketch below to support your answer$).$

Elevation of point Q

Engineering station at point $R$