Finding the Fourth Proportional to 231,498.37, 347,261.13 and 89,344.42

Step by Step Solution

1. Step 1: Write the proportion equation
   231,498.37 : 347,261.13 = 89,344.42 : x
2. Step 2: Convert to fraction form
   231,498.37/347,261.13 = 89,344.42/x
3. Step 3: Cross multiply
   231,498.37x = 347,261.13 × 89,344.42
4. Step 4: Simplify right side
   231,498.37x = 31,025,844,248.39
5. Step 5: Solve for x
   x = 31,025,844,248.39/231,498.37
6. Step 6: Final answer
   x = 134,021.87