Finding the Fourth Proportional to 13,229.24, 18,253.50 and 7,637

Step by Step Solution

1. Step 1: Write the proportion equation
   13,229.24 : 18,253.50 = 7,637 : x
2. Step 2: Convert to fraction form
   13,229.24/18,253.50 = 7,637/x
3. Step 3: Cross multiply
   13,229.24x = 18,253.50 × 7,637
4. Step 4: Simplify right side
   13,229.24x = 139,401,979.50
5. Step 5: Solve for x
   x = 139,401,979.50/13,229.24
6. Step 6: Final answer
   x = 10,537.41