Finding the Fourth Proportional to 6,540.48, 9,025.31 and 3,707.21

Step by Step Solution

1. Step 1: Write the proportion equation
   6,540.48 : 9,025.31 = 3,707.21 : x
2. Step 2: Convert to fraction form
   6,540.48/9,025.31 = 3,707.21/x
3. Step 3: Cross multiply
   6,540.48x = 9,025.31 × 3,707.21
4. Step 4: Simplify right side
   6,540.48x = 33,458,655.82
5. Step 5: Solve for x
   x = 33,458,655.82/6,540.48
6. Step 6: Final answer
   x = 5,115.63