Finding the Fourth Proportional to 10,831.56, 16,234.24 and 5,276.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,831.56 : 16,234.24 = 5,276.60 : x
2. Step 2: Convert to fraction form
   10,831.56/16,234.24 = 5,276.60/x
3. Step 3: Cross multiply
   10,831.56x = 16,234.24 × 5,276.60
4. Step 4: Simplify right side
   10,831.56x = 85,661,590.78
5. Step 5: Solve for x
   x = 85,661,590.78/10,831.56
6. Step 6: Final answer
   x = 7,908.52