Finding the Fourth Proportional to 8,669.36, 13,025.43 and 5,550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,669.36 : 13,025.43 = 5,550.72 : x
2. Step 2: Convert to fraction form
   8,669.36/13,025.43 = 5,550.72/x
3. Step 3: Cross multiply
   8,669.36x = 13,025.43 × 5,550.72
4. Step 4: Simplify right side
   8,669.36x = 72,300,514.81
5. Step 5: Solve for x
   x = 72,300,514.81/8,669.36
6. Step 6: Final answer
   x = 8,339.78