Finding the Fourth Proportional to 9,805.82, 13,529.04 and 5,556.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,805.82 : 13,529.04 = 5,556.20 : x
2. Step 2: Convert to fraction form
   9,805.82/13,529.04 = 5,556.20/x
3. Step 3: Cross multiply
   9,805.82x = 13,529.04 × 5,556.20
4. Step 4: Simplify right side
   9,805.82x = 75,170,052.05
5. Step 5: Solve for x
   x = 75,170,052.05/9,805.82
6. Step 6: Final answer
   x = 7,665.86