Four Fours/Lemmata/Three Fours/72/Solutions

Puzzle: Three Fours: $72$

Using exactly $3$ instances of the number $4$, the task is to write an expression for $72$, using whatever arithmetical operations you consider necessary.

Solutions

Solution $1$

$72 = \dfrac {4! + 4!} {\sqrt {. \dot 4} }$

Solution $2$

$72 = 4! + 4! + 4!$