Finding the Fourth Proportional to 9,786.76, 13,505.72 and 5,595.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.76 : 13,505.72 = 5,595.10 : x
2. Step 2: Convert to fraction form
   9,786.76/13,505.72 = 5,595.10/x
3. Step 3: Cross multiply
   9,786.76x = 13,505.72 × 5,595.10
4. Step 4: Simplify right side
   9,786.76x = 75,565,853.97
5. Step 5: Solve for x
   x = 75,565,853.97/9,786.76
6. Step 6: Final answer
   x = 7,721.23