Finding the Fourth Proportional to 16,243.56, 22,408.20 and 9,525

Step by Step Solution

1. Step 1: Write the proportion equation
   16,243.56 : 22,408.20 = 9,525 : x
2. Step 2: Convert to fraction form
   16,243.56/22,408.20 = 9,525/x
3. Step 3: Cross multiply
   16,243.56x = 22,408.20 × 9,525
4. Step 4: Simplify right side
   16,243.56x = 213,438,105
5. Step 5: Solve for x
   x = 213,438,105/16,243.56
6. Step 6: Final answer
   x = 13,139.86