Finding the Fourth Proportional to 22,400.73, 30,912.33 and 12,329.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,400.73 : 30,912.33 = 12,329.18 : x
2. Step 2: Convert to fraction form
   22,400.73/30,912.33 = 12,329.18/x
3. Step 3: Cross multiply
   22,400.73x = 30,912.33 × 12,329.18
4. Step 4: Simplify right side
   22,400.73x = 381,123,688.38
5. Step 5: Solve for x
   x = 381,123,688.38/22,400.73
6. Step 6: Final answer
   x = 17,013.90