Four Fours/158/Solutions/1

Puzzle: Four Fours: $158$

Using exactly $4$ instances of the number $4$, the task is to write an expression for $158$, using whatever arithmetical operations you consider necessary.

Solution

$158 = \dfrac {\paren {\map \Gamma 4}! \times {. \dot 4} - 4} {\sqrt 4}$