Finding the Fourth Proportional to 9,809, 13,536.72 and 5,559.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,809 : 13,536.72 = 5,559.96 : x
2. Step 2: Convert to fraction form
   9,809/13,536.72 = 5,559.96/x
3. Step 3: Cross multiply
   9,809x = 13,536.72 × 5,559.96
4. Step 4: Simplify right side
   9,809x = 75,263,621.73
5. Step 5: Solve for x
   x = 75,263,621.73/9,809
6. Step 6: Final answer
   x = 7,672.91