Finding the Fourth Proportional to 6,868.22, 9,478.22 and 3,724.47

Step by Step Solution

1. Step 1: Write the proportion equation
   6,868.22 : 9,478.22 = 3,724.47 : x
2. Step 2: Convert to fraction form
   6,868.22/9,478.22 = 3,724.47/x
3. Step 3: Cross multiply
   6,868.22x = 9,478.22 × 3,724.47
4. Step 4: Simplify right side
   6,868.22x = 35,301,327.42
5. Step 5: Solve for x
   x = 35,301,327.42/6,868.22
6. Step 6: Final answer
   x = 5,139.81