Finding the Fourth Proportional to 56,359.49, 84,570.35 and 31,413.58

Step by Step Solution

1. Step 1: Write the proportion equation
   56,359.49 : 84,570.35 = 31,413.58 : x
2. Step 2: Convert to fraction form
   56,359.49/84,570.35 = 31,413.58/x
3. Step 3: Cross multiply
   56,359.49x = 84,570.35 × 31,413.58
4. Step 4: Simplify right side
   56,359.49x = 2,656,657,086.86
5. Step 5: Solve for x
   x = 2,656,657,086.86/56,359.49
6. Step 6: Final answer
   x = 47,137.71