Finding the Fourth Proportional to 71,843.37, 99,146.91 and 40,012.27

Step by Step Solution

1. Step 1: Write the proportion equation
   71,843.37 : 99,146.91 = 40,012.27 : x
2. Step 2: Convert to fraction form
   71,843.37/99,146.91 = 40,012.27/x
3. Step 3: Cross multiply
   71,843.37x = 99,146.91 × 40,012.27
4. Step 4: Simplify right side
   71,843.37x = 3,967,092,582.80
5. Step 5: Solve for x
   x = 3,967,092,582.80/71,843.37
6. Step 6: Final answer
   x = 55,218.63