Finding the Fourth Proportional to 123,738, 170,758.56 and 67,149.38

Step by Step Solution

1. Step 1: Write the proportion equation
   123,738 : 170,758.56 = 67,149.38 : x
2. Step 2: Convert to fraction form
   123,738/170,758.56 = 67,149.38/x
3. Step 3: Cross multiply
   123,738x = 170,758.56 × 67,149.38
4. Step 4: Simplify right side
   123,738x = 11,466,331,433.69
5. Step 5: Solve for x
   x = 11,466,331,433.69/123,738
6. Step 6: Final answer
   x = 92,666.21