Finding the Fourth Proportional to 6,622.43, 9,930.42 and 3,849.90

Step by Step Solution

1. Step 1: Write the proportion equation
   6,622.43 : 9,930.42 = 3,849.90 : x
2. Step 2: Convert to fraction form
   6,622.43/9,930.42 = 3,849.90/x
3. Step 3: Cross multiply
   6,622.43x = 9,930.42 × 3,849.90
4. Step 4: Simplify right side
   6,622.43x = 38,231,123.96
5. Step 5: Solve for x
   x = 38,231,123.96/6,622.43
6. Step 6: Final answer
   x = 5,772.98