Finding the Fourth Proportional to 78,413.37, 108,255.30 and 51,633.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,413.37 : 108,255.30 = 51,633.69 : x
2. Step 2: Convert to fraction form
   78,413.37/108,255.30 = 51,633.69/x
3. Step 3: Cross multiply
   78,413.37x = 108,255.30 × 51,633.69
4. Step 4: Simplify right side
   78,413.37x = 5,589,620,601.06
5. Step 5: Solve for x
   x = 5,589,620,601.06/78,413.37
6. Step 6: Final answer
   x = 71,284.02