Finding the Fourth Proportional to 71,420.72, 107,067.72 and 27,016.40

Step by Step Solution

1. Step 1: Write the proportion equation
   71,420.72 : 107,067.72 = 27,016.40 : x
2. Step 2: Convert to fraction form
   71,420.72/107,067.72 = 27,016.40/x
3. Step 3: Cross multiply
   71,420.72x = 107,067.72 × 27,016.40
4. Step 4: Simplify right side
   71,420.72x = 2,892,584,350.61
5. Step 5: Solve for x
   x = 2,892,584,350.61/71,420.72
6. Step 6: Final answer
   x = 40,500.63