Finding the Fourth Proportional to 10,839.28, 14,949.30 and 7,663.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,839.28 : 14,949.30 = 7,663.27 : x
2. Step 2: Convert to fraction form
   10,839.28/14,949.30 = 7,663.27/x
3. Step 3: Cross multiply
   10,839.28x = 14,949.30 × 7,663.27
4. Step 4: Simplify right side
   10,839.28x = 114,560,522.21
5. Step 5: Solve for x
   x = 114,560,522.21/10,839.28
6. Step 6: Final answer
   x = 10,569.02