Finding the Fourth Proportional to 123,721.56, 170,734.23 and 67,132.53

Step by Step Solution

1. Step 1: Write the proportion equation
   123,721.56 : 170,734.23 = 67,132.53 : x
2. Step 2: Convert to fraction form
   123,721.56/170,734.23 = 67,132.53/x
3. Step 3: Cross multiply
   123,721.56x = 170,734.23 × 67,132.53
4. Step 4: Simplify right side
   123,721.56x = 11,461,820,817.50
5. Step 5: Solve for x
   x = 11,461,820,817.50/123,721.56
6. Step 6: Final answer
   x = 92,642.07