To find height $ h $ use formula:
$$ V = h ^{ 2 } \cdot r \cdot \pi$$After substituting $V = 3119.5\, \text{cm}$ and $r = 9.4\, \text{cm}$ we have:
$$ 3119.5\, \text{cm} = 9.4\, \text{cm} \cdot h ^{ 2 } \cdot \pi $$$$ h ^{ 2 } = \dfrac{ 3119.5\, \text{cm}}{ 9.4\, \text{cm} \, \pi } $$$$ h ^{ 2 } \approx 105.6346 $$$$ h \approx \sqrt{ 105.6346 } $$$$ h \approx 10.2779 $$