Finding the Fourth Proportional to 9,089.24, 12,540.25 and 5,505.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,089.24 : 12,540.25 = 5,505.55 : x
2. Step 2: Convert to fraction form
   9,089.24/12,540.25 = 5,505.55/x
3. Step 3: Cross multiply
   9,089.24x = 12,540.25 × 5,505.55
4. Step 4: Simplify right side
   9,089.24x = 69,040,973.39
5. Step 5: Solve for x
   x = 69,040,973.39/9,089.24
6. Step 6: Final answer
   x = 7,595.90