Finding the Fourth Proportional to 123,413.96, 170,183.94 and 105,568.04

Step by Step Solution

1. Step 1: Write the proportion equation
   123,413.96 : 170,183.94 = 105,568.04 : x
2. Step 2: Convert to fraction form
   123,413.96/170,183.94 = 105,568.04/x
3. Step 3: Cross multiply
   123,413.96x = 170,183.94 × 105,568.04
4. Step 4: Simplify right side
   123,413.96x = 17,965,984,985.28
5. Step 5: Solve for x
   x = 17,965,984,985.28/123,413.96
6. Step 6: Final answer
   x = 145,574.98