Finding the Fourth Proportional to 113,016.71, 155,936.85 and 67,686.27

Step by Step Solution

1. Step 1: Write the proportion equation
   113,016.71 : 155,936.85 = 67,686.27 : x
2. Step 2: Convert to fraction form
   113,016.71/155,936.85 = 67,686.27/x
3. Step 3: Cross multiply
   113,016.71x = 155,936.85 × 67,686.27
4. Step 4: Simplify right side
   113,016.71x = 10,554,783,732.05
5. Step 5: Solve for x
   x = 10,554,783,732.05/113,016.71
6. Step 6: Final answer
   x = 93,391.36