Finding the Fourth Proportional to 10,535.16, 15,711.17 and 10,393.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,535.16 : 15,711.17 = 10,393.92 : x
2. Step 2: Convert to fraction form
   10,535.16/15,711.17 = 10,393.92/x
3. Step 3: Cross multiply
   10,535.16x = 15,711.17 × 10,393.92
4. Step 4: Simplify right side
   10,535.16x = 163,300,592.12
5. Step 5: Solve for x
   x = 163,300,592.12/10,535.16
6. Step 6: Final answer
   x = 15,500.53