Finding the Fourth Proportional to 231,340.86, 319,229.56 and 134,545.61

Step by Step Solution

1. Step 1: Write the proportion equation
   231,340.86 : 319,229.56 = 134,545.61 : x
2. Step 2: Convert to fraction form
   231,340.86/319,229.56 = 134,545.61/x
3. Step 3: Cross multiply
   231,340.86x = 319,229.56 × 134,545.61
4. Step 4: Simplify right side
   231,340.86x = 42,950,934,294.00
5. Step 5: Solve for x
   x = 42,950,934,294.00/231,340.86
6. Step 6: Final answer
   x = 185,660.82