Finding the Fourth Proportional to 139,767.94, 192,873.93 and 76,105.57

Step by Step Solution

1. Step 1: Write the proportion equation
   139,767.94 : 192,873.93 = 76,105.57 : x
2. Step 2: Convert to fraction form
   139,767.94/192,873.93 = 76,105.57/x
3. Step 3: Cross multiply
   139,767.94x = 192,873.93 × 76,105.57
4. Step 4: Simplify right side
   139,767.94x = 14,678,780,380.79
5. Step 5: Solve for x
   x = 14,678,780,380.79/139,767.94
6. Step 6: Final answer
   x = 105,022.51