Finding the Fourth Proportional to 10,387.38, 15,500.00 and 9,269.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387.38 : 15,500.00 = 9,269.10 : x
2. Step 2: Convert to fraction form
   10,387.38/15,500.00 = 9,269.10/x
3. Step 3: Cross multiply
   10,387.38x = 15,500.00 × 9,269.10
4. Step 4: Simplify right side
   10,387.38x = 143,671,003.65
5. Step 5: Solve for x
   x = 143,671,003.65/10,387.38
6. Step 6: Final answer
   x = 13,831.30