Finding the Fourth Proportional to 139,413.30, 192,391.54 and 75,751.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,413.30 : 192,391.54 = 75,751.10 : x
2. Step 2: Convert to fraction form
   139,413.30/192,391.54 = 75,751.10/x
3. Step 3: Cross multiply
   139,413.30x = 192,391.54 × 75,751.10
4. Step 4: Simplify right side
   139,413.30x = 14,573,870,355.83
5. Step 5: Solve for x
   x = 14,573,870,355.83/139,413.30
6. Step 6: Final answer
   x = 104,537.16