Finding the Fourth Proportional to 9,964.76, 13,751.39 and 5,488.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.76 : 13,751.39 = 5,488.52 : x
2. Step 2: Convert to fraction form
   9,964.76/13,751.39 = 5,488.52/x
3. Step 3: Cross multiply
   9,964.76x = 13,751.39 × 5,488.52
4. Step 4: Simplify right side
   9,964.76x = 75,474,751.60
5. Step 5: Solve for x
   x = 75,474,751.60/9,964.76
6. Step 6: Final answer
   x = 7,574.17