Finding the Fourth Proportional to 10,900.17, 15,049.95 and 8,512.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.17 : 15,049.95 = 8,512.83 : x
2. Step 2: Convert to fraction form
   10,900.17/15,049.95 = 8,512.83/x
3. Step 3: Cross multiply
   10,900.17x = 15,049.95 × 8,512.83
4. Step 4: Simplify right side
   10,900.17x = 128,117,665.86
5. Step 5: Solve for x
   x = 128,117,665.86/10,900.17
6. Step 6: Final answer
   x = 11,753.73