Finding the Fourth Proportional to 16,464.80, 24,678.64 and 8,127.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,464.80 : 24,678.64 = 8,127.12 : x
2. Step 2: Convert to fraction form
   16,464.80/24,678.64 = 8,127.12/x
3. Step 3: Cross multiply
   16,464.80x = 24,678.64 × 8,127.12
4. Step 4: Simplify right side
   16,464.80x = 200,566,268.72
5. Step 5: Solve for x
   x = 200,566,268.72/16,464.80
6. Step 6: Final answer
   x = 12,181.52