Finding the Fourth Proportional to 6,293.98, 8,684.85 and 3,640.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,293.98 : 8,684.85 = 3,640.42 : x
2. Step 2: Convert to fraction form
   6,293.98/8,684.85 = 3,640.42/x
3. Step 3: Cross multiply
   6,293.98x = 8,684.85 × 3,640.42
4. Step 4: Simplify right side
   6,293.98x = 31,616,501.64
5. Step 5: Solve for x
   x = 31,616,501.64/6,293.98
6. Step 6: Final answer
   x = 5,023.29