Finding the Fourth Proportional to 9,963.96, 13,751.04 and 5,488.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,963.96 : 13,751.04 = 5,488.56 : x
2. Step 2: Convert to fraction form
   9,963.96/13,751.04 = 5,488.56/x
3. Step 3: Cross multiply
   9,963.96x = 13,751.04 × 5,488.56
4. Step 4: Simplify right side
   9,963.96x = 75,473,408.10
5. Step 5: Solve for x
   x = 75,473,408.10/9,963.96
6. Step 6: Final answer
   x = 7,574.64