Finding the Fourth Proportional to 22,692.38, 31,291.79 and 13,736.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,692.38 : 31,291.79 = 13,736.61 : x
2. Step 2: Convert to fraction form
   22,692.38/31,291.79 = 13,736.61/x
3. Step 3: Cross multiply
   22,692.38x = 31,291.79 × 13,736.61
4. Step 4: Simplify right side
   22,692.38x = 429,843,046.75
5. Step 5: Solve for x
   x = 429,843,046.75/22,692.38
6. Step 6: Final answer
   x = 18,942.18