Finding the Fourth Proportional to 7,352.72, 10,146.78 and 3,995.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,352.72 : 10,146.78 = 3,995.55 : x
2. Step 2: Convert to fraction form
   7,352.72/10,146.78 = 3,995.55/x
3. Step 3: Cross multiply
   7,352.72x = 10,146.78 × 3,995.55
4. Step 4: Simplify right side
   7,352.72x = 40,541,966.83
5. Step 5: Solve for x
   x = 40,541,966.83/7,352.72
6. Step 6: Final answer
   x = 5,513.87