Finding the Fourth Proportional to 9,964.69, 13,750.94 and 5,488.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.69 : 13,750.94 = 5,488.43 : x
2. Step 2: Convert to fraction form
   9,964.69/13,750.94 = 5,488.43/x
3. Step 3: Cross multiply
   9,964.69x = 13,750.94 × 5,488.43
4. Step 4: Simplify right side
   9,964.69x = 75,471,078.56
5. Step 5: Solve for x
   x = 75,471,078.56/9,964.69
6. Step 6: Final answer
   x = 7,573.85