Finding the Fourth Proportional to 9,976.20, 13,767.24 and 5,500.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.20 : 13,767.24 = 5,500.11 : x
2. Step 2: Convert to fraction form
   9,976.20/13,767.24 = 5,500.11/x
3. Step 3: Cross multiply
   9,976.20x = 13,767.24 × 5,500.11
4. Step 4: Simplify right side
   9,976.20x = 75,721,265.56
5. Step 5: Solve for x
   x = 75,721,265.56/9,976.20
6. Step 6: Final answer
   x = 7,590.20