Finding the Fourth Proportional to 123,738.50, 170,759.25 and 67,149.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,738.50 : 170,759.25 = 67,149.88 : x
2. Step 2: Convert to fraction form
   123,738.50/170,759.25 = 67,149.88/x
3. Step 3: Cross multiply
   123,738.50x = 170,759.25 × 67,149.88
4. Step 4: Simplify right side
   123,738.50x = 11,466,463,146.39
5. Step 5: Solve for x
   x = 11,466,463,146.39/123,738.50
6. Step 6: Final answer
   x = 92,666.90