Finding the Fourth Proportional to 22,308.34, 30,784.95 and 12,747.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,308.34 : 30,784.95 = 12,747.61 : x
2. Step 2: Convert to fraction form
   22,308.34/30,784.95 = 12,747.61/x
3. Step 3: Cross multiply
   22,308.34x = 30,784.95 × 12,747.61
4. Step 4: Simplify right side
   22,308.34x = 392,434,549.69
5. Step 5: Solve for x
   x = 392,434,549.69/22,308.34
6. Step 6: Final answer
   x = 17,591.39