Finding the Fourth Proportional to 50,308.88, 69,397.36 and 31,413.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,308.88 : 69,397.36 = 31,413.20 : x
2. Step 2: Convert to fraction form
   50,308.88/69,397.36 = 31,413.20/x
3. Step 3: Cross multiply
   50,308.88x = 69,397.36 × 31,413.20
4. Step 4: Simplify right side
   50,308.88x = 2,179,992,723.63
5. Step 5: Solve for x
   x = 2,179,992,723.63/50,308.88
6. Step 6: Final answer
   x = 43,332.17