Finding the Fourth Proportional to 9,964.77, 13,751.26 and 5,488.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.77 : 13,751.26 = 5,488.42 : x
2. Step 2: Convert to fraction form
   9,964.77/13,751.26 = 5,488.42/x
3. Step 3: Cross multiply
   9,964.77x = 13,751.26 × 5,488.42
4. Step 4: Simplify right side
   9,964.77x = 75,472,690.41
5. Step 5: Solve for x
   x = 75,472,690.41/9,964.77
6. Step 6: Final answer
   x = 7,573.95