Finding the Fourth Proportional to 231,632.16, 347,499.24 and 131,839.32

Step by Step Solution

1. Step 1: Write the proportion equation
   231,632.16 : 347,499.24 = 131,839.32 : x
2. Step 2: Convert to fraction form
   231,632.16/347,499.24 = 131,839.32/x
3. Step 3: Cross multiply
   231,632.16x = 347,499.24 × 131,839.32
4. Step 4: Simplify right side
   231,632.16x = 45,814,063,502.12
5. Step 5: Solve for x
   x = 45,814,063,502.12/231,632.16
6. Step 6: Final answer
   x = 197,788.01