Finding the Fourth Proportional to 13,227.24, 18,250.74 and 7,635

Step by Step Solution

1. Step 1: Write the proportion equation
   13,227.24 : 18,250.74 = 7,635 : x
2. Step 2: Convert to fraction form
   13,227.24/18,250.74 = 7,635/x
3. Step 3: Cross multiply
   13,227.24x = 18,250.74 × 7,635
4. Step 4: Simplify right side
   13,227.24x = 139,344,399.90
5. Step 5: Solve for x
   x = 139,344,399.90/13,227.24
6. Step 6: Final answer
   x = 10,534.65