Finding the Fourth Proportional to 108,413.78, 162,615.63 and 28,449.77

Step by Step Solution

1. Step 1: Write the proportion equation
   108,413.78 : 162,615.63 = 28,449.77 : x
2. Step 2: Convert to fraction form
   108,413.78/162,615.63 = 28,449.77/x
3. Step 3: Cross multiply
   108,413.78x = 162,615.63 × 28,449.77
4. Step 4: Simplify right side
   108,413.78x = 4,626,376,458.83
5. Step 5: Solve for x
   x = 4,626,376,458.83/108,413.78
6. Step 6: Final answer
   x = 42,673.33