Finding the Fourth Proportional to 78,223.15, 107,948.46 and 42,413.71

Step by Step Solution

1. Step 1: Write the proportion equation
   78,223.15 : 107,948.46 = 42,413.71 : x
2. Step 2: Convert to fraction form
   78,223.15/107,948.46 = 42,413.71/x
3. Step 3: Cross multiply
   78,223.15x = 107,948.46 × 42,413.71
4. Step 4: Simplify right side
   78,223.15x = 4,578,494,677.39
5. Step 5: Solve for x
   x = 4,578,494,677.39/78,223.15
6. Step 6: Final answer
   x = 58,531.20