Finding the Fourth Proportional to 7,080.72, 9,771.10 and 3,937.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,080.72 : 9,771.10 = 3,937.12 : x
2. Step 2: Convert to fraction form
   7,080.72/9,771.10 = 3,937.12/x
3. Step 3: Cross multiply
   7,080.72x = 9,771.10 × 3,937.12
4. Step 4: Simplify right side
   7,080.72x = 38,469,993.23
5. Step 5: Solve for x
   x = 38,469,993.23/7,080.72
6. Step 6: Final answer
   x = 5,433.06