Finding the Fourth Proportional to 6,868.89, 9,479.06 and 3,725.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,868.89 : 9,479.06 = 3,725.09 : x
2. Step 2: Convert to fraction form
   6,868.89/9,479.06 = 3,725.09/x
3. Step 3: Cross multiply
   6,868.89x = 9,479.06 × 3,725.09
4. Step 4: Simplify right side
   6,868.89x = 35,310,285.59
5. Step 5: Solve for x
   x = 35,310,285.59/6,868.89
6. Step 6: Final answer
   x = 5,140.61