Finding the Fourth Proportional to 6,229.62, 8,594.01 and 3,990.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,229.62 : 8,594.01 = 3,990.42 : x
2. Step 2: Convert to fraction form
   6,229.62/8,594.01 = 3,990.42/x
3. Step 3: Cross multiply
   6,229.62x = 8,594.01 × 3,990.42
4. Step 4: Simplify right side
   6,229.62x = 34,293,709.38
5. Step 5: Solve for x
   x = 34,293,709.38/6,229.62
6. Step 6: Final answer
   x = 5,504.94