Finding the Fourth Proportional to 231,895.10, 347,640.15 and 89,837.30

Step by Step Solution

1. Step 1: Write the proportion equation
   231,895.10 : 347,640.15 = 89,837.30 : x
2. Step 2: Convert to fraction form
   231,895.10/347,640.15 = 89,837.30/x
3. Step 3: Cross multiply
   231,895.10x = 347,640.15 × 89,837.30
4. Step 4: Simplify right side
   231,895.10x = 31,231,052,447.60
5. Step 5: Solve for x
   x = 31,231,052,447.60/231,895.10
6. Step 6: Final answer
   x = 134,677.50