Finding the Fourth Proportional to 5,540.43, 7,643.52 and 3,552.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,540.43 : 7,643.52 = 3,552.15 : x
2. Step 2: Convert to fraction form
   5,540.43/7,643.52 = 3,552.15/x
3. Step 3: Cross multiply
   5,540.43x = 7,643.52 × 3,552.15
4. Step 4: Simplify right side
   5,540.43x = 27,150,929.57
5. Step 5: Solve for x
   x = 27,150,929.57/5,540.43
6. Step 6: Final answer
   x = 4,900.51