Finding the Fourth Proportional to 12,362.81, 17,040.72 and 9,669.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,362.81 : 17,040.72 = 9,669.26 : x
2. Step 2: Convert to fraction form
   12,362.81/17,040.72 = 9,669.26/x
3. Step 3: Cross multiply
   12,362.81x = 17,040.72 × 9,669.26
4. Step 4: Simplify right side
   12,362.81x = 164,771,067.06
5. Step 5: Solve for x
   x = 164,771,067.06/12,362.81
6. Step 6: Final answer
   x = 13,327.97