Finding the Fourth Proportional to 123,951.36, 171,054.72 and 67,362.78

Step by Step Solution

1. Step 1: Write the proportion equation
   123,951.36 : 171,054.72 = 67,362.78 : x
2. Step 2: Convert to fraction form
   123,951.36/171,054.72 = 67,362.78/x
3. Step 3: Cross multiply
   123,951.36x = 171,054.72 × 67,362.78
4. Step 4: Simplify right side
   123,951.36x = 11,522,721,471.32
5. Step 5: Solve for x
   x = 11,522,721,471.32/123,951.36
6. Step 6: Final answer
   x = 92,961.64