Finding the Fourth Proportional to 139,620.78, 192,671.06 and 75,958.83

Step by Step Solution

1. Step 1: Write the proportion equation
   139,620.78 : 192,671.06 = 75,958.83 : x
2. Step 2: Convert to fraction form
   139,620.78/192,671.06 = 75,958.83/x
3. Step 3: Cross multiply
   139,620.78x = 192,671.06 × 75,958.83
4. Step 4: Simplify right side
   139,620.78x = 14,635,067,912.67
5. Step 5: Solve for x
   x = 14,635,067,912.67/139,620.78
6. Step 6: Final answer
   x = 104,820.13