Finding the Fourth Proportional to 22,401.24, 30,915.56 and 12,331.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,401.24 : 30,915.56 = 12,331.56 : x
2. Step 2: Convert to fraction form
   22,401.24/30,915.56 = 12,331.56/x
3. Step 3: Cross multiply
   22,401.24x = 30,915.56 × 12,331.56
4. Step 4: Simplify right side
   22,401.24x = 381,237,083.07
5. Step 5: Solve for x
   x = 381,237,083.07/22,401.24
6. Step 6: Final answer
   x = 17,018.57