Finding the Fourth Proportional to 123,867.96, 170,938.06 and 67,278.12

Step by Step Solution

1. Step 1: Write the proportion equation
   123,867.96 : 170,938.06 = 67,278.12 : x
2. Step 2: Convert to fraction form
   123,867.96/170,938.06 = 67,278.12/x
3. Step 3: Cross multiply
   123,867.96x = 170,938.06 × 67,278.12
4. Step 4: Simplify right side
   123,867.96x = 11,500,391,313.25
5. Step 5: Solve for x
   x = 11,500,391,313.25/123,867.96
6. Step 6: Final answer
   x = 92,843.96