The single-phase full-bridge voltage source inverter (VSI), shown in figure, has an output frequency of $50 \: \text{ Hz}$. It uses unipolar pulse width modulation with switching frequency of $50$ kHz and modulation index of $0.7$. For $V_{\text{in}} = 100 V DC, L = 9.55$ mH, $C = 63.66 \: \mu F$, and $R = 5 \Omega$, the amplitude of the fundamental component in the output voltage $V_{\text{o}}$ (in Volt) under steady-state is ________.