Finding the Fourth Proportional to 9,266.16, 12,786.42 and 5,489.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,266.16 : 12,786.42 = 5,489.33 : x
2. Step 2: Convert to fraction form
   9,266.16/12,786.42 = 5,489.33/x
3. Step 3: Cross multiply
   9,266.16x = 12,786.42 × 5,489.33
4. Step 4: Simplify right side
   9,266.16x = 70,188,851.45
5. Step 5: Solve for x
   x = 70,188,851.45/9,266.16
6. Step 6: Final answer
   x = 7,574.75