Finding the Fourth Proportional to 9,964.91, 13,751.52 and 5,488.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.91 : 13,751.52 = 5,488.55 : x
2. Step 2: Convert to fraction form
   9,964.91/13,751.52 = 5,488.55/x
3. Step 3: Cross multiply
   9,964.91x = 13,751.52 × 5,488.55
4. Step 4: Simplify right side
   9,964.91x = 75,475,836.34
5. Step 5: Solve for x
   x = 75,475,836.34/9,964.91
6. Step 6: Final answer
   x = 7,574.17