Finding the Fourth Proportional to 7,003.92, 9,665.48 and 3,860.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.92 : 9,665.48 = 3,860.12 : x
2. Step 2: Convert to fraction form
   7,003.92/9,665.48 = 3,860.12/x
3. Step 3: Cross multiply
   7,003.92x = 9,665.48 × 3,860.12
4. Step 4: Simplify right side
   7,003.92x = 37,309,912.66
5. Step 5: Solve for x
   x = 37,309,912.66/7,003.92
6. Step 6: Final answer
   x = 5,327.00