Finding the Fourth Proportional to 12,265.69, 18,399 and 3,944.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,265.69 : 18,399 = 3,944.61 : x
2. Step 2: Convert to fraction form
   12,265.69/18,399 = 3,944.61/x
3. Step 3: Cross multiply
   12,265.69x = 18,399 × 3,944.61
4. Step 4: Simplify right side
   12,265.69x = 72,576,879.39
5. Step 5: Solve for x
   x = 72,576,879.39/12,265.69
6. Step 6: Final answer
   x = 5,917.06