Finding the Fourth Proportional to 17,947.27, 24,766.81 and 9,989.33

Step by Step Solution

1. Step 1: Write the proportion equation
   17,947.27 : 24,766.81 = 9,989.33 : x
2. Step 2: Convert to fraction form
   17,947.27/24,766.81 = 9,989.33/x
3. Step 3: Cross multiply
   17,947.27x = 24,766.81 × 9,989.33
4. Step 4: Simplify right side
   17,947.27x = 247,403,745.52
5. Step 5: Solve for x
   x = 247,403,745.52/17,947.27
6. Step 6: Final answer
   x = 13,785.03