Finding the Fourth Proportional to 78,413.77, 108,212.16 and 42,604.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,413.77 : 108,212.16 = 42,604.48 : x
2. Step 2: Convert to fraction form
   78,413.77/108,212.16 = 42,604.48/x
3. Step 3: Cross multiply
   78,413.77x = 108,212.16 × 42,604.48
4. Step 4: Simplify right side
   78,413.77x = 4,610,322,806.48
5. Step 5: Solve for x
   x = 4,610,322,806.48/78,413.77
6. Step 6: Final answer
   x = 58,794.81