Finding the Fourth Proportional to 31,629.84, 43,644.72 and 18,018.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,629.84 : 43,644.72 = 18,018.24 : x
2. Step 2: Convert to fraction form
   31,629.84/43,644.72 = 18,018.24/x
3. Step 3: Cross multiply
   31,629.84x = 43,644.72 × 18,018.24
4. Step 4: Simplify right side
   31,629.84x = 786,401,039.69
5. Step 5: Solve for x
   x = 786,401,039.69/31,629.84
6. Step 6: Final answer
   x = 24,862.63