Finding the Fourth Proportional to 13,208.40, 18,229.59 and 7,544.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,208.40 : 18,229.59 = 7,544.34 : x
2. Step 2: Convert to fraction form
   13,208.40/18,229.59 = 7,544.34/x
3. Step 3: Cross multiply
   13,208.40x = 18,229.59 × 7,544.34
4. Step 4: Simplify right side
   13,208.40x = 137,530,225.02
5. Step 5: Solve for x
   x = 137,530,225.02/13,208.40
6. Step 6: Final answer
   x = 10,412.33