Finding the Fourth Proportional to 22,555.43, 31,126.56 and 12,484.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,555.43 : 31,126.56 = 12,484.57 : x
2. Step 2: Convert to fraction form
   22,555.43/31,126.56 = 12,484.57/x
3. Step 3: Cross multiply
   22,555.43x = 31,126.56 × 12,484.57
4. Step 4: Simplify right side
   22,555.43x = 388,601,499.12
5. Step 5: Solve for x
   x = 388,601,499.12/22,555.43
6. Step 6: Final answer
   x = 17,228.73