Finding the Fourth Proportional to 139,413.84, 192,390.72 and 75,751.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,413.84 : 192,390.72 = 75,751.86 : x
2. Step 2: Convert to fraction form
   139,413.84/192,390.72 = 75,751.86/x
3. Step 3: Cross multiply
   139,413.84x = 192,390.72 × 75,751.86
4. Step 4: Simplify right side
   139,413.84x = 14,573,954,886.74
5. Step 5: Solve for x
   x = 14,573,954,886.74/139,413.84
6. Step 6: Final answer
   x = 104,537.36