To find volume $ V $ use formula:
$$ V = \dfrac{ 4 \cdot r^3 \cdot \pi}{ 3 } $$After substituting $r = 41.8\, \text{cm}$ we have:
$$ V = \dfrac{ 4 \cdot \left( 41.8\, \text{cm} \right)^{3} \cdot \pi}{ 3 } $$ $$ V = \dfrac{ 4 \cdot 73034.632\, \text{cm}^3 \cdot \pi}{ 3 }$$ $$ V = \dfrac{ 292138.528\, \text{cm}^3 \cdot \pi}{ 3 }$$ $$ V = 97379.5093\, \text{cm}^3 \cdot \pi $$