Finding the Fourth Proportional to 11,399.22, 17,111.82 and 7,653.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,399.22 : 17,111.82 = 7,653.78 : x
2. Step 2: Convert to fraction form
   11,399.22/17,111.82 = 7,653.78/x
3. Step 3: Cross multiply
   11,399.22x = 17,111.82 × 7,653.78
4. Step 4: Simplify right side
   11,399.22x = 130,970,105.68
5. Step 5: Solve for x
   x = 130,970,105.68/11,399.22
6. Step 6: Final answer
   x = 11,489.39