Finding the Fourth Proportional to 9,809.21, 13,536.43 and 5,560.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,809.21 : 13,536.43 = 5,560.67 : x
2. Step 2: Convert to fraction form
   9,809.21/13,536.43 = 5,560.67/x
3. Step 3: Cross multiply
   9,809.21x = 13,536.43 × 5,560.67
4. Step 4: Simplify right side
   9,809.21x = 75,271,524.72
5. Step 5: Solve for x
   x = 75,271,524.72/9,809.21
6. Step 6: Final answer
   x = 7,673.56