Finding the Fourth Proportional to 9,809.27, 13,535.10 and 5,559.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,809.27 : 13,535.10 = 5,559.45 : x
2. Step 2: Convert to fraction form
   9,809.27/13,535.10 = 5,559.45/x
3. Step 3: Cross multiply
   9,809.27x = 13,535.10 × 5,559.45
4. Step 4: Simplify right side
   9,809.27x = 75,247,711.70
5. Step 5: Solve for x
   x = 75,247,711.70/9,809.27
6. Step 6: Final answer
   x = 7,671.08