Finding the Fourth Proportional to 9,027.72, 12,453.48 and 5,488.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,027.72 : 12,453.48 = 5,488.56 : x
2. Step 2: Convert to fraction form
   9,027.72/12,453.48 = 5,488.56/x
3. Step 3: Cross multiply
   9,027.72x = 12,453.48 × 5,488.56
4. Step 4: Simplify right side
   9,027.72x = 68,351,672.19
5. Step 5: Solve for x
   x = 68,351,672.19/9,027.72
6. Step 6: Final answer
   x = 7,571.31