"4 inches" is a length. "7676 square feet" is an area. "4 inches by 7676 square feet"
describes a volume, which is equal to 2,558.67 cubic feet. (= 7676/3, because 4 in = 1/3 ft.) So your question is better put as "How many tons of crushed stone does it take to cover an area of 7676 square feet to a depth of 4 inches?"
The answer depends on the density of the crushed stone. I can't answer that, but I've given your question a clearer phrasing.
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25 Yards
221.67 (2dp)
36
64 cuft, about 2 and a third cubic yards
1 yard of 1" crushed stone