Finding the Fourth Proportional to 123,304.72, 170,142.27 and 74,881.47

Step by Step Solution

1. Step 1: Write the proportion equation
   123,304.72 : 170,142.27 = 74,881.47 : x
2. Step 2: Convert to fraction form
   123,304.72/170,142.27 = 74,881.47/x
3. Step 3: Cross multiply
   123,304.72x = 170,142.27 × 74,881.47
4. Step 4: Simplify right side
   123,304.72x = 12,740,502,061.62
5. Step 5: Solve for x
   x = 12,740,502,061.62/123,304.72
6. Step 6: Final answer
   x = 103,325.34