Finding the Fourth Proportional to 7,004.86, 9,666.71 and 3,861.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,004.86 : 9,666.71 = 3,861.10 : x
2. Step 2: Convert to fraction form
   7,004.86/9,666.71 = 3,861.10/x
3. Step 3: Cross multiply
   7,004.86x = 9,666.71 × 3,861.10
4. Step 4: Simplify right side
   7,004.86x = 37,324,114.68
5. Step 5: Solve for x
   x = 37,324,114.68/7,004.86
6. Step 6: Final answer
   x = 5,328.32