Finding the Fourth Proportional to 8,905.60, 12,293.52 and 5,550.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,905.60 : 12,293.52 = 5,550.09 : x
2. Step 2: Convert to fraction form
   8,905.60/12,293.52 = 5,550.09/x
3. Step 3: Cross multiply
   8,905.60x = 12,293.52 × 5,550.09
4. Step 4: Simplify right side
   8,905.60x = 68,230,142.42
5. Step 5: Solve for x
   x = 68,230,142.42/8,905.60
6. Step 6: Final answer
   x = 7,661.49