Finding the Fourth Proportional to 16,866.96, 23,275.56 and 9,413.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,866.96 : 23,275.56 = 9,413.52 : x
2. Step 2: Convert to fraction form
   16,866.96/23,275.56 = 9,413.52/x
3. Step 3: Cross multiply
   16,866.96x = 23,275.56 × 9,413.52
4. Step 4: Simplify right side
   16,866.96x = 219,104,949.57
5. Step 5: Solve for x
   x = 219,104,949.57/16,866.96
6. Step 6: Final answer
   x = 12,990.19