Finding the Fourth Proportional to 22,378.50, 30,882.33 and 12,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,378.50 : 30,882.33 = 12,442.50 : x
2. Step 2: Convert to fraction form
   22,378.50/30,882.33 = 12,442.50/x
3. Step 3: Cross multiply
   22,378.50x = 30,882.33 × 12,442.50
4. Step 4: Simplify right side
   22,378.50x = 384,253,391.03
5. Step 5: Solve for x
   x = 384,253,391.03/22,378.50
6. Step 6: Final answer
   x = 17,170.65