Finding the Fourth Proportional to 6,868.25, 9,478.19 and 3,724.45

Step by Step Solution

1. Step 1: Write the proportion equation
   6,868.25 : 9,478.19 = 3,724.45 : x
2. Step 2: Convert to fraction form
   6,868.25/9,478.19 = 3,724.45/x
3. Step 3: Cross multiply
   6,868.25x = 9,478.19 × 3,724.45
4. Step 4: Simplify right side
   6,868.25x = 35,300,978.73
5. Step 5: Solve for x
   x = 35,300,978.73/6,868.25
6. Step 6: Final answer
   x = 5,139.73