What is the weighted moving average forecast for $2017,$ if weights of $0\mathrm{.}05,0\mathrm{.}15,0\mathrm{.}3,$ and $0\mathrm{.}5$ are used?

More recent data are assigned the higher weights.

Choice $1$ of $5$:$36,000$

Choice $2$ of $5$:$31,800$

Choice $3$ of $5$:$41,000$

Choice $4$ of $5$:$41,750$

Choice $5$ of $5$:None of the above