Finding the Fourth Proportional to 78,413.24, 108,208.94 and 42,603.81

Step by Step Solution

1. Step 1: Write the proportion equation
   78,413.24 : 108,208.94 = 42,603.81 : x
2. Step 2: Convert to fraction form
   78,413.24/108,208.94 = 42,603.81/x
3. Step 3: Cross multiply
   78,413.24x = 108,208.94 × 42,603.81
4. Step 4: Simplify right side
   78,413.24x = 4,610,112,907.04
5. Step 5: Solve for x
   x = 4,610,112,907.04/78,413.24
6. Step 6: Final answer
   x = 58,792.54