Finding the Fourth Proportional to 56,563.55, 78,061.17 and 31,413.05

Step by Step Solution

1. Step 1: Write the proportion equation
   56,563.55 : 78,061.17 = 31,413.05 : x
2. Step 2: Convert to fraction form
   56,563.55/78,061.17 = 31,413.05/x
3. Step 3: Cross multiply
   56,563.55x = 78,061.17 × 31,413.05
4. Step 4: Simplify right side
   56,563.55x = 2,452,139,436.27
5. Step 5: Solve for x
   x = 2,452,139,436.27/56,563.55
6. Step 6: Final answer
   x = 43,351.94