Finding the Fourth Proportional to 11,861.00, 17,785.46 and 3,960.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,861.00 : 17,785.46 = 3,960.68 : x
2. Step 2: Convert to fraction form
   11,861.00/17,785.46 = 3,960.68/x
3. Step 3: Cross multiply
   11,861.00x = 17,785.46 × 3,960.68
4. Step 4: Simplify right side
   11,861.00x = 70,442,406.98
5. Step 5: Solve for x
   x = 70,442,406.98/11,861.00
6. Step 6: Final answer
   x = 5,939.00