Finding the Fourth Proportional to 56,821.54, 78,413.92 and 31,327.34

Step by Step Solution

1. Step 1: Write the proportion equation
   56,821.54 : 78,413.92 = 31,327.34 : x
2. Step 2: Convert to fraction form
   56,821.54/78,413.92 = 31,327.34/x
3. Step 3: Cross multiply
   56,821.54x = 78,413.92 × 31,327.34
4. Step 4: Simplify right side
   56,821.54x = 2,456,499,375.94
5. Step 5: Solve for x
   x = 2,456,499,375.94/56,821.54
6. Step 6: Final answer
   x = 43,231.84