Finding the Fourth Proportional to 123,906.84, 170,994.96 and 67,321.68

Step by Step Solution

1. Step 1: Write the proportion equation
   123,906.84 : 170,994.96 = 67,321.68 : x
2. Step 2: Convert to fraction form
   123,906.84/170,994.96 = 67,321.68/x
3. Step 3: Cross multiply
   123,906.84x = 170,994.96 × 67,321.68
4. Step 4: Simplify right side
   123,906.84x = 11,511,667,978.73
5. Step 5: Solve for x
   x = 11,511,667,978.73/123,906.84
6. Step 6: Final answer
   x = 92,905.83