Finding the Fourth Proportional to 123,304.53, 170,142.01 and 74,881.28

Step by Step Solution

1. Step 1: Write the proportion equation
   123,304.53 : 170,142.01 = 74,881.28 : x
2. Step 2: Convert to fraction form
   123,304.53/170,142.01 = 74,881.28/x
3. Step 3: Cross multiply
   123,304.53x = 170,142.01 × 74,881.28
4. Step 4: Simplify right side
   123,304.53x = 12,740,450,452.66
5. Step 5: Solve for x
   x = 12,740,450,452.66/123,304.53
6. Step 6: Final answer
   x = 103,325.08