Finding the Fourth Proportional to 71,849.41, 99,155.25 and 40,018.32

Step by Step Solution

1. Step 1: Write the proportion equation
   71,849.41 : 99,155.25 = 40,018.32 : x
2. Step 2: Convert to fraction form
   71,849.41/99,155.25 = 40,018.32/x
3. Step 3: Cross multiply
   71,849.41x = 99,155.25 × 40,018.32
4. Step 4: Simplify right side
   71,849.41x = 3,968,026,524.18
5. Step 5: Solve for x
   x = 3,968,026,524.18/71,849.41
6. Step 6: Final answer
   x = 55,226.99