Finding the Fourth Proportional to 81,399.83, 112,330.78 and 47,413.85

Step by Step Solution

1. Step 1: Write the proportion equation
   81,399.83 : 112,330.78 = 47,413.85 : x
2. Step 2: Convert to fraction form
   81,399.83/112,330.78 = 47,413.85/x
3. Step 3: Cross multiply
   81,399.83x = 112,330.78 × 47,413.85
4. Step 4: Simplify right side
   81,399.83x = 5,326,034,753.30
5. Step 5: Solve for x
   x = 5,326,034,753.30/81,399.83
6. Step 6: Final answer
   x = 65,430.54