Finding the Fourth Proportional to 22,589.30, 31,172.82 and 12,517.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,589.30 : 31,172.82 = 12,517.52 : x
2. Step 2: Convert to fraction form
   22,589.30/31,172.82 = 12,517.52/x
3. Step 3: Cross multiply
   22,589.30x = 31,172.82 × 12,517.52
4. Step 4: Simplify right side
   22,589.30x = 390,206,397.81
5. Step 5: Solve for x
   x = 390,206,397.81/22,589.30
6. Step 6: Final answer
   x = 17,273.95