Finding the Fourth Proportional to 139,371.93, 192,333.78 and 82,013.49

Step by Step Solution

1. Step 1: Write the proportion equation
   139,371.93 : 192,333.78 = 82,013.49 : x
2. Step 2: Convert to fraction form
   139,371.93/192,333.78 = 82,013.49/x
3. Step 3: Cross multiply
   139,371.93x = 192,333.78 × 82,013.49
4. Step 4: Simplify right side
   139,371.93x = 15,773,964,542.69
5. Step 5: Solve for x
   x = 15,773,964,542.69/139,371.93
6. Step 6: Final answer
   x = 113,178.92