Finding the Fourth Proportional to 123,732.96, 170,754.56 and 67,144.20

Step by Step Solution

1. Step 1: Write the proportion equation
   123,732.96 : 170,754.56 = 67,144.20 : x
2. Step 2: Convert to fraction form
   123,732.96/170,754.56 = 67,144.20/x
3. Step 3: Cross multiply
   123,732.96x = 170,754.56 × 67,144.20
4. Step 4: Simplify right side
   123,732.96x = 11,465,178,327.55
5. Step 5: Solve for x
   x = 11,465,178,327.55/123,732.96
6. Step 6: Final answer
   x = 92,660.66