Finding the Fourth Proportional to 8,804.72, 13,198.17 and 5,520.11

Step by Step Solution

1. Step 1: Write the proportion equation
   8,804.72 : 13,198.17 = 5,520.11 : x
2. Step 2: Convert to fraction form
   8,804.72/13,198.17 = 5,520.11/x
3. Step 3: Cross multiply
   8,804.72x = 13,198.17 × 5,520.11
4. Step 4: Simplify right side
   8,804.72x = 72,855,284.21
5. Step 5: Solve for x
   x = 72,855,284.21/8,804.72
6. Step 6: Final answer
   x = 8,274.58