Finding the Fourth Proportional to 6,709.31, 9,258.87 and 3,725.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,709.31 : 9,258.87 = 3,725.15 : x
2. Step 2: Convert to fraction form
   6,709.31/9,258.87 = 3,725.15/x
3. Step 3: Cross multiply
   6,709.31x = 9,258.87 × 3,725.15
4. Step 4: Simplify right side
   6,709.31x = 34,490,679.58
5. Step 5: Solve for x
   x = 34,490,679.58/6,709.31
6. Step 6: Final answer
   x = 5,140.72