Finding the Fourth Proportional to 9,976.36, 13,767.32 and 5,500.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.36 : 13,767.32 = 5,500.09 : x
2. Step 2: Convert to fraction form
   9,976.36/13,767.32 = 5,500.09/x
3. Step 3: Cross multiply
   9,976.36x = 13,767.32 × 5,500.09
4. Step 4: Simplify right side
   9,976.36x = 75,721,471.56
5. Step 5: Solve for x
   x = 75,721,471.56/9,976.36
6. Step 6: Final answer
   x = 7,590.09