Finding the Fourth Proportional to 9,786.88, 13,505.89 and 5,595.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.88 : 13,505.89 = 5,595.22 : x
2. Step 2: Convert to fraction form
   9,786.88/13,505.89 = 5,595.22/x
3. Step 3: Cross multiply
   9,786.88x = 13,505.89 × 5,595.22
4. Step 4: Simplify right side
   9,786.88x = 75,568,425.85
5. Step 5: Solve for x
   x = 75,568,425.85/9,786.88
6. Step 6: Final answer
   x = 7,721.40