Finding the Fourth Proportional to 78,223.51, 107,948.67 and 42,413.53

Step by Step Solution

1. Step 1: Write the proportion equation
   78,223.51 : 107,948.67 = 42,413.53 : x
2. Step 2: Convert to fraction form
   78,223.51/107,948.67 = 42,413.53/x
3. Step 3: Cross multiply
   78,223.51x = 107,948.67 × 42,413.53
4. Step 4: Simplify right side
   78,223.51x = 4,578,484,153.51
5. Step 5: Solve for x
   x = 4,578,484,153.51/78,223.51
6. Step 6: Final answer
   x = 58,530.79