The given statement is:

$x$ is an even number implies that $x$ is divisible by $4$.

This statement can be written as

If $x$ is an even number then $x$ is divisible by $4$.

Here $p\rightarrow$ $x$ is an even number.

$q\rightarrow$ $x$ is divisible by $4$

~$p\rightarrow$ $x$ is not an even number.

~$q\rightarrow$ $x$ is not divisible by $4$.

$\therefore$ The converse of the given statement is

If $x$ is divisible by $4$ then $x$ is an even number.

The contra positive statement is

If $x$ is not divisible by $4$ then $x$ is not an even number.