Three infinitely long charged thin sheets are placed as shown in figure. The magnitude of electric field at the point P is (x σ)/(ε_o). The value of…

Three infinitely long charged thin sheets are placed as shown in figure. The magnitude of electric field at the point $\displaystyle P$ is $\displaystyle \frac{x \sigma}{\epsilon_o}$. The value of $\displaystyle x$ is $\displaystyle \_\_\_\_$ (all quantities are measured in SI units).