Finding the Fourth Proportional to 72,158.24, 99,578.53 and 40,327.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72,158.24 : 99,578.53 = 40,327.14 : x
2. Step 2: Convert to fraction form
   72,158.24/99,578.53 = 40,327.14/x
3. Step 3: Cross multiply
   72,158.24x = 99,578.53 × 40,327.14
4. Step 4: Simplify right side
   72,158.24x = 4,015,717,320.30
5. Step 5: Solve for x
   x = 4,015,717,320.30/72,158.24
6. Step 6: Final answer
   x = 55,651.54