Finding the Fourth Proportional to 20,404.40, 30,604.17 and 5,614.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,404.40 : 30,604.17 = 5,614.82 : x
2. Step 2: Convert to fraction form
   20,404.40/30,604.17 = 5,614.82/x
3. Step 3: Cross multiply
   20,404.40x = 30,604.17 × 5,614.82
4. Step 4: Simplify right side
   20,404.40x = 171,836,905.80
5. Step 5: Solve for x
   x = 171,836,905.80/20,404.40
6. Step 6: Final answer
   x = 8,421.56