Finding the Fourth Proportional to 22,567.39, 31,143 and 12,495.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,567.39 : 31,143 = 12,495.83 : x
2. Step 2: Convert to fraction form
   22,567.39/31,143 = 12,495.83/x
3. Step 3: Cross multiply
   22,567.39x = 31,143 × 12,495.83
4. Step 4: Simplify right side
   22,567.39x = 389,157,711.55
5. Step 5: Solve for x
   x = 389,157,711.55/22,567.39
6. Step 6: Final answer
   x = 17,244.25