Finding the Fourth Proportional to 11,255.36, 15,520.71 and 9,667.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,255.36 : 15,520.71 = 9,667.25 : x
2. Step 2: Convert to fraction form
   11,255.36/15,520.71 = 9,667.25/x
3. Step 3: Cross multiply
   11,255.36x = 15,520.71 × 9,667.25
4. Step 4: Simplify right side
   11,255.36x = 150,042,600.60
5. Step 5: Solve for x
   x = 150,042,600.60/11,255.36
6. Step 6: Final answer
   x = 13,330.77