Finding the Fourth Proportional to 123,768.54, 170,800.78 and 67,179.94

Step by Step Solution

1. Step 1: Write the proportion equation
   123,768.54 : 170,800.78 = 67,179.94 : x
2. Step 2: Convert to fraction form
   123,768.54/170,800.78 = 67,179.94/x
3. Step 3: Cross multiply
   123,768.54x = 170,800.78 × 67,179.94
4. Step 4: Simplify right side
   123,768.54x = 11,474,386,152.35
5. Step 5: Solve for x
   x = 11,474,386,152.35/123,768.54
6. Step 6: Final answer
   x = 92,708.42