Finding the Fourth Proportional to 22,627.62, 31,224.76 and 12,555.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,627.62 : 31,224.76 = 12,555.47 : x
2. Step 2: Convert to fraction form
   22,627.62/31,224.76 = 12,555.47/x
3. Step 3: Cross multiply
   22,627.62x = 31,224.76 × 12,555.47
4. Step 4: Simplify right side
   22,627.62x = 392,041,584.11
5. Step 5: Solve for x
   x = 392,041,584.11/22,627.62
6. Step 6: Final answer
   x = 17,325.80