Finding the Fourth Proportional to 12,729.33, 17,567.37 and 7,064.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,729.33 : 17,567.37 = 7,064.64 : x
2. Step 2: Convert to fraction form
   12,729.33/17,567.37 = 7,064.64/x
3. Step 3: Cross multiply
   12,729.33x = 17,567.37 × 7,064.64
4. Step 4: Simplify right side
   12,729.33x = 124,107,144.80
5. Step 5: Solve for x
   x = 124,107,144.80/12,729.33
6. Step 6: Final answer
   x = 9,749.70