The lengths and bearings of a traverse $PQRS$ are:
$$\begin{array}{|c|c|c|}\hline \text{Segment}&\text{Length}\:(m) &\text{Bearing}\\\hline PQ&40&80^\circ{} \\\hline QR&50&10^\circ{} \\\hline RS&30&210^\circ{}\\\hline\end{array}$$
The length of line segment SP (in $m$, round off to two decimal places), is __________