Finding the Fourth Proportional to 23,098.98, 31,876.50 and 12,488.61

Step by Step Solution

1. Step 1: Write the proportion equation
   23,098.98 : 31,876.50 = 12,488.61 : x
2. Step 2: Convert to fraction form
   23,098.98/31,876.50 = 12,488.61/x
3. Step 3: Cross multiply
   23,098.98x = 31,876.50 × 12,488.61
4. Step 4: Simplify right side
   23,098.98x = 398,093,176.67
5. Step 5: Solve for x
   x = 398,093,176.67/23,098.98
6. Step 6: Final answer
   x = 17,234.23