Finding the Fourth Proportional to 6,143.90, 8,478.24 and 3,625.43

Step by Step Solution

1. Step 1: Write the proportion equation
   6,143.90 : 8,478.24 = 3,625.43 : x
2. Step 2: Convert to fraction form
   6,143.90/8,478.24 = 3,625.43/x
3. Step 3: Cross multiply
   6,143.90x = 8,478.24 × 3,625.43
4. Step 4: Simplify right side
   6,143.90x = 30,737,223.25
5. Step 5: Solve for x
   x = 30,737,223.25/6,143.90
6. Step 6: Final answer
   x = 5,002.89