Finding the Fourth Proportional to 22,281.54, 30,748.92 and 12,209.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,281.54 : 30,748.92 = 12,209.31 : x
2. Step 2: Convert to fraction form
   22,281.54/30,748.92 = 12,209.31/x
3. Step 3: Cross multiply
   22,281.54x = 30,748.92 × 12,209.31
4. Step 4: Simplify right side
   22,281.54x = 375,423,096.45
5. Step 5: Solve for x
   x = 375,423,096.45/22,281.54
6. Step 6: Final answer
   x = 16,849.06