Finding the Fourth Proportional to 16,580.72, 24,864.72 and 5,485.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,580.72 : 24,864.72 = 5,485.52 : x
2. Step 2: Convert to fraction form
   16,580.72/24,864.72 = 5,485.52/x
3. Step 3: Cross multiply
   16,580.72x = 24,864.72 × 5,485.52
4. Step 4: Simplify right side
   16,580.72x = 136,395,918.85
5. Step 5: Solve for x
   x = 136,395,918.85/16,580.72
6. Step 6: Final answer
   x = 8,226.18