Finding the Fourth Proportional to 21,650.41, 29,866.56 and 13,150.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,650.41 : 29,866.56 = 13,150.27 : x
2. Step 2: Convert to fraction form
   21,650.41/29,866.56 = 13,150.27/x
3. Step 3: Cross multiply
   21,650.41x = 29,866.56 × 13,150.27
4. Step 4: Simplify right side
   21,650.41x = 392,753,187.55
5. Step 5: Solve for x
   x = 392,753,187.55/21,650.41
6. Step 6: Final answer
   x = 18,140.68