Finding the Fourth Proportional to 181,499.86, 250,475.88 and 99,831.56

Step by Step Solution

1. Step 1: Write the proportion equation
   181,499.86 : 250,475.88 = 99,831.56 : x
2. Step 2: Convert to fraction form
   181,499.86/250,475.88 = 99,831.56/x
3. Step 3: Cross multiply
   181,499.86x = 250,475.88 × 99,831.56
4. Step 4: Simplify right side
   181,499.86x = 25,005,399,149.61
5. Step 5: Solve for x
   x = 25,005,399,149.61/181,499.86
6. Step 6: Final answer
   x = 137,770.90