Finding the Fourth Proportional to 199,413.57, 275,191.59 and 108,771.48

Step by Step Solution

1. Step 1: Write the proportion equation
   199,413.57 : 275,191.59 = 108,771.48 : x
2. Step 2: Convert to fraction form
   199,413.57/275,191.59 = 108,771.48/x
3. Step 3: Cross multiply
   199,413.57x = 275,191.59 × 108,771.48
4. Step 4: Simplify right side
   199,413.57x = 29,932,997,250.84
5. Step 5: Solve for x
   x = 29,932,997,250.84/199,413.57
6. Step 6: Final answer
   x = 150,105.12