Finding the Fourth Proportional to 9,964.41, 13,751.23 and 5,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.41 : 13,751.23 = 5,488.50 : x
2. Step 2: Convert to fraction form
   9,964.41/13,751.23 = 5,488.50/x
3. Step 3: Cross multiply
   9,964.41x = 13,751.23 × 5,488.50
4. Step 4: Simplify right side
   9,964.41x = 75,473,625.86
5. Step 5: Solve for x
   x = 75,473,625.86/9,964.41
6. Step 6: Final answer
   x = 7,574.32