Finding the Fourth Proportional to 28,577.61, 42,861.56 and 7,796.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,577.61 : 42,861.56 = 7,796.25 : x
2. Step 2: Convert to fraction form
   28,577.61/42,861.56 = 7,796.25/x
3. Step 3: Cross multiply
   28,577.61x = 42,861.56 × 7,796.25
4. Step 4: Simplify right side
   28,577.61x = 334,159,398.17
5. Step 5: Solve for x
   x = 334,159,398.17/28,577.61
6. Step 6: Final answer
   x = 11,693.05