Finding the Fourth Proportional to 23,109.24, 31,890.72 and 12,498.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,109.24 : 31,890.72 = 12,498.88 : x
2. Step 2: Convert to fraction form
   23,109.24/31,890.72 = 12,498.88/x
3. Step 3: Cross multiply
   23,109.24x = 31,890.72 × 12,498.88
4. Step 4: Simplify right side
   23,109.24x = 398,598,282.39
5. Step 5: Solve for x
   x = 398,598,282.39/23,109.24
6. Step 6: Final answer
   x = 17,248.44