If 1440.144 = 14.4x , then the value of x is?

Answer: Option D

$$\begin{array}{rl}& \frac{144}{0.144}=\frac{14.4}{x}\\ & \Rightarrow \frac{144\times 1000}{144}=\frac{144}{x\times 10}\\ & \Rightarrow 1000=\frac{144}{10x}\\ & \Rightarrow x=\frac{144}{1000\times 10}\\ & \Rightarrow x=\frac{144}{10000}\\ & \Rightarrow x=0.0144\end{array}$$