Finding the Fourth Proportional to 7,003.98, 9,665.85 and 3,860.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.98 : 9,665.85 = 3,860.16 : x
2. Step 2: Convert to fraction form
   7,003.98/9,665.85 = 3,860.16/x
3. Step 3: Cross multiply
   7,003.98x = 9,665.85 × 3,860.16
4. Step 4: Simplify right side
   7,003.98x = 37,311,727.54
5. Step 5: Solve for x
   x = 37,311,727.54/7,003.98
6. Step 6: Final answer
   x = 5,327.22