Answer
74,800 gallons
Work Step by Step
Convert by multiplying $\dfrac{7.48 \text{ gal}}{1 \text{ ft}^3}$ to obtain:
$=\require{cancel}
10000 \cancel{\text{ ft}^3} \cdot \dfrac{7.48\text{ gal}}{1 \cancel{\text{ ft}^3}}
\\=10000(7.48) \text{ gal}
\\=74800 \text{ gal}$
