Finding the Fourth Proportional to 16,513.92, 24,768.72 and 5,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,513.92 : 24,768.72 = 5,418.72 : x
2. Step 2: Convert to fraction form
   16,513.92/24,768.72 = 5,418.72/x
3. Step 3: Cross multiply
   16,513.92x = 24,768.72 × 5,418.72
4. Step 4: Simplify right side
   16,513.92x = 134,214,758.44
5. Step 5: Solve for x
   x = 134,214,758.44/16,513.92
6. Step 6: Final answer
   x = 8,127.37