Finding the Fourth Proportional to 9,966.03, 13,753.23 and 5,489.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,966.03 : 13,753.23 = 5,489.69 : x
2. Step 2: Convert to fraction form
   9,966.03/13,753.23 = 5,489.69/x
3. Step 3: Cross multiply
   9,966.03x = 13,753.23 × 5,489.69
4. Step 4: Simplify right side
   9,966.03x = 75,500,872.98
5. Step 5: Solve for x
   x = 75,500,872.98/9,966.03
6. Step 6: Final answer
   x = 7,575.83