What is the forecast for May based on a weighted moving average applied to the following past demand data and using the weights: $4,3,2($largest weight is for most recent data & round to one decimal place$)?$

Nov.

Dec.

Jan.

Feb.

Mar.

April

$39$

$36$

$40$

$42$

$48$

$46$

$45\mathrm{.}8$

$63\mathrm{.}5$

$57\mathrm{.}4$

$137\mathrm{.}3$