Finding the Fourth Proportional to 23,108.54, 31,889.79 and 12,498.17

Step by Step Solution

1. Step 1: Write the proportion equation
   23,108.54 : 31,889.79 = 12,498.17 : x
2. Step 2: Convert to fraction form
   23,108.54/31,889.79 = 12,498.17/x
3. Step 3: Cross multiply
   23,108.54x = 31,889.79 × 12,498.17
4. Step 4: Simplify right side
   23,108.54x = 398,564,096.41
5. Step 5: Solve for x
   x = 398,564,096.41/23,108.54
6. Step 6: Final answer
   x = 17,247.48