Given x = 480

Ans,  x is 5% of y.

So, we write it as:

solving for y, we get, 

or y = 9600

Now, It is also given that:  y is 24% of z 

Therefore, we can write it as:

or 9600 = 24z/ 100

Solving it for z we get, z = 960000/24

z = 40000