Finding the Fourth Proportional to 7,078.52, 10,610.86 and 3,960.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,078.52 : 10,610.86 = 3,960.04 : x
2. Step 2: Convert to fraction form
   7,078.52/10,610.86 = 3,960.04/x
3. Step 3: Cross multiply
   7,078.52x = 10,610.86 × 3,960.04
4. Step 4: Simplify right side
   7,078.52x = 42,019,430.03
5. Step 5: Solve for x
   x = 42,019,430.03/7,078.52
6. Step 6: Final answer
   x = 5,936.19