Finding the Fourth Proportional to 9,964.32, 13,751.08 and 5,488.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.32 : 13,751.08 = 5,488.28 : x
2. Step 2: Convert to fraction form
   9,964.32/13,751.08 = 5,488.28/x
3. Step 3: Cross multiply
   9,964.32x = 13,751.08 × 5,488.28
4. Step 4: Simplify right side
   9,964.32x = 75,469,777.34
5. Step 5: Solve for x
   x = 75,469,777.34/9,964.32
6. Step 6: Final answer
   x = 7,574.00