Finding the Fourth Proportional to 36,155.98, 49,899.94 and 20,243.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,155.98 : 49,899.94 = 20,243.72 : x
2. Step 2: Convert to fraction form
   36,155.98/49,899.94 = 20,243.72/x
3. Step 3: Cross multiply
   36,155.98x = 49,899.94 × 20,243.72
4. Step 4: Simplify right side
   36,155.98x = 1,010,160,413.38
5. Step 5: Solve for x
   x = 1,010,160,413.38/36,155.98
6. Step 6: Final answer
   x = 27,938.96