Finding the Fourth Proportional to 123,761.81, 170,786.72 and 67,171.97

Step by Step Solution

1. Step 1: Write the proportion equation
   123,761.81 : 170,786.72 = 67,171.97 : x
2. Step 2: Convert to fraction form
   123,761.81/170,786.72 = 67,171.97/x
3. Step 3: Cross multiply
   123,761.81x = 170,786.72 × 67,171.97
4. Step 4: Simplify right side
   123,761.81x = 11,472,079,242.45
5. Step 5: Solve for x
   x = 11,472,079,242.45/123,761.81
6. Step 6: Final answer
   x = 92,694.83