Finding the Fourth Proportional to 23,108.98, 31,890.24 and 12,498.58

Step by Step Solution

1. Step 1: Write the proportion equation
   23,108.98 : 31,890.24 = 12,498.58 : x
2. Step 2: Convert to fraction form
   23,108.98/31,890.24 = 12,498.58/x
3. Step 3: Cross multiply
   23,108.98x = 31,890.24 × 12,498.58
4. Step 4: Simplify right side
   23,108.98x = 398,582,715.86
5. Step 5: Solve for x
   x = 398,582,715.86/23,108.98
6. Step 6: Final answer
   x = 17,247.96