Can 4(9) = 100?

$\color{#3D99F6}\text{yes,this is possible}$

$99+\frac{9}{9}=100$

$log(\sqrt{\sqrt{\sqrt{\sqrt{log(\sqrt{9}; 9)}}}}; log(\sqrt{9}; 9))=100$

Where I've put four square roots there should be a hundred of them.

Note: log(a; b) denotes a logarithm base a of b.

Note: we can construct any natural number using this method!