Finding the Fourth Proportional to 9,351.50, 12,892.64 and 7,752.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,351.50 : 12,892.64 = 7,752.15 : x
2. Step 2: Convert to fraction form
   9,351.50/12,892.64 = 7,752.15/x
3. Step 3: Cross multiply
   9,351.50x = 12,892.64 × 7,752.15
4. Step 4: Simplify right side
   9,351.50x = 99,945,640.42
5. Step 5: Solve for x
   x = 99,945,640.42/9,351.50
6. Step 6: Final answer
   x = 10,687.66