Example Question - angle sum of quadrilateral

Finding the Value of x in a Quadrilateral

\begin{align*} \angle CAB + \angle ABC + \angle BCD + \angle CDA &= 360^\circ \\ 32^\circ + 115^\circ + 90^\circ + x^\circ &= 360^\circ \\ x^\circ &= 360^\circ - 237^\circ \\ x^\circ &= 123^\circ \end{align*}