Finding the Fourth Proportional to 9,631.52, 13,291.48 and 5,440.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,631.52 : 13,291.48 = 5,440.56 : x
2. Step 2: Convert to fraction form
   9,631.52/13,291.48 = 5,440.56/x
3. Step 3: Cross multiply
   9,631.52x = 13,291.48 × 5,440.56
4. Step 4: Simplify right side
   9,631.52x = 72,313,094.43
5. Step 5: Solve for x
   x = 72,313,094.43/9,631.52
6. Step 6: Final answer
   x = 7,507.96