Finding the Fourth Proportional to 78,132.96, 107,823.60 and 42,323.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,132.96 : 107,823.60 = 42,323.28 : x
2. Step 2: Convert to fraction form
   78,132.96/107,823.60 = 42,323.28/x
3. Step 3: Cross multiply
   78,132.96x = 107,823.60 × 42,323.28
4. Step 4: Simplify right side
   78,132.96x = 4,563,448,413.41
5. Step 5: Solve for x
   x = 4,563,448,413.41/78,132.96
6. Step 6: Final answer
   x = 58,406.19