Finding the Fourth Proportional to 22,463.33, 30,998.70 and 12,391.38

Step by Step Solution

1. Step 1: Write the proportion equation
   22,463.33 : 30,998.70 = 12,391.38 : x
2. Step 2: Convert to fraction form
   22,463.33/30,998.70 = 12,391.38/x
3. Step 3: Cross multiply
   22,463.33x = 30,998.70 × 12,391.38
4. Step 4: Simplify right side
   22,463.33x = 384,116,671.21
5. Step 5: Solve for x
   x = 384,116,671.21/22,463.33
6. Step 6: Final answer
   x = 17,099.72