Finding the Fourth Proportional to 22,280.67, 30,747.32 and 12,209.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,280.67 : 30,747.32 = 12,209.49 : x
2. Step 2: Convert to fraction form
   22,280.67/30,747.32 = 12,209.49/x
3. Step 3: Cross multiply
   22,280.67x = 30,747.32 × 12,209.49
4. Step 4: Simplify right side
   22,280.67x = 375,409,035.02
5. Step 5: Solve for x
   x = 375,409,035.02/22,280.67
6. Step 6: Final answer
   x = 16,849.09