Finding the Fourth Proportional to 22,498.27, 31,060.88 and 15,435.07

Step by Step Solution

1. Step 1: Write the proportion equation
   22,498.27 : 31,060.88 = 15,435.07 : x
2. Step 2: Convert to fraction form
   22,498.27/31,060.88 = 15,435.07/x
3. Step 3: Cross multiply
   22,498.27x = 31,060.88 × 15,435.07
4. Step 4: Simplify right side
   22,498.27x = 479,426,857.06
5. Step 5: Solve for x
   x = 479,426,857.06/22,498.27
6. Step 6: Final answer
   x = 21,309.50