Finding the Fourth Proportional to 22,677.39, 31,293.41 and 12,605.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,677.39 : 31,293.41 = 12,605.31 : x
2. Step 2: Convert to fraction form
   22,677.39/31,293.41 = 12,605.31/x
3. Step 3: Cross multiply
   22,677.39x = 31,293.41 × 12,605.31
4. Step 4: Simplify right side
   22,677.39x = 394,463,070.98
5. Step 5: Solve for x
   x = 394,463,070.98/22,677.39
6. Step 6: Final answer
   x = 17,394.55