Finding the Fourth Proportional to 16,966.89, 23,413.88 and 9,413.19

Step by Step Solution

1. Step 1: Write the proportion equation
   16,966.89 : 23,413.88 = 9,413.19 : x
2. Step 2: Convert to fraction form
   16,966.89/23,413.88 = 9,413.19/x
3. Step 3: Cross multiply
   16,966.89x = 23,413.88 × 9,413.19
4. Step 4: Simplify right side
   16,966.89x = 220,399,254.01
5. Step 5: Solve for x
   x = 220,399,254.01/16,966.89
6. Step 6: Final answer
   x = 12,989.96