Finding the Fourth Proportional to 22,627.09, 31,224.28 and 12,555.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,627.09 : 31,224.28 = 12,555.42 : x
2. Step 2: Convert to fraction form
   22,627.09/31,224.28 = 12,555.42/x
3. Step 3: Cross multiply
   22,627.09x = 31,224.28 × 12,555.42
4. Step 4: Simplify right side
   22,627.09x = 392,033,949.60
5. Step 5: Solve for x
   x = 392,033,949.60/22,627.09
6. Step 6: Final answer
   x = 17,325.87