Finding the Fourth Proportional to 139,675, 192,717.89 and 82,316.61

Step by Step Solution

1. Step 1: Write the proportion equation
   139,675 : 192,717.89 = 82,316.61 : x
2. Step 2: Convert to fraction form
   139,675/192,717.89 = 82,316.61/x
3. Step 3: Cross multiply
   139,675x = 192,717.89 × 82,316.61
4. Step 4: Simplify right side
   139,675x = 15,863,882,015.98
5. Step 5: Solve for x
   x = 15,863,882,015.98/139,675
6. Step 6: Final answer
   x = 113,577.10