Finding the Fourth Proportional to 9,524.48, 13,143.74 and 5,491.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,524.48 : 13,143.74 = 5,491.28 : x
2. Step 2: Convert to fraction form
   9,524.48/13,143.74 = 5,491.28/x
3. Step 3: Cross multiply
   9,524.48x = 13,143.74 × 5,491.28
4. Step 4: Simplify right side
   9,524.48x = 72,175,956.59
5. Step 5: Solve for x
   x = 72,175,956.59/9,524.48
6. Step 6: Final answer
   x = 7,577.94