Finding the Fourth Proportional to 9,496.82, 13,111.80 and 8,500.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,496.82 : 13,111.80 = 8,500.40 : x
2. Step 2: Convert to fraction form
   9,496.82/13,111.80 = 8,500.40/x
3. Step 3: Cross multiply
   9,496.82x = 13,111.80 × 8,500.40
4. Step 4: Simplify right side
   9,496.82x = 111,455,544.72
5. Step 5: Solve for x
   x = 111,455,544.72/9,496.82
6. Step 6: Final answer
   x = 11,736.09