Four Fours/Lemmata/Three Fours/42/Solutions

Puzzle: Three Fours: $42$

Using exactly $3$ instances of the number $4$, the task is to write an expression for $42$, using whatever arithmetical operations you consider necessary.

Solutions

Solution $1$

$42 = \dfrac {4! + \sqrt 4} {\sqrt {. \dot 4} }$