Finding the Fourth Proportional to 6,868.22, 9,478.17 and 3,724.43

Step by Step Solution

1. Step 1: Write the proportion equation
   6,868.22 : 9,478.17 = 3,724.43 : x
2. Step 2: Convert to fraction form
   6,868.22/9,478.17 = 3,724.43/x
3. Step 3: Cross multiply
   6,868.22x = 9,478.17 × 3,724.43
4. Step 4: Simplify right side
   6,868.22x = 35,300,733.30
5. Step 5: Solve for x
   x = 35,300,733.30/6,868.22
6. Step 6: Final answer
   x = 5,139.72