Finding the Fourth Proportional to 16,798.72, 25,197.12 and 5,111.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,798.72 : 25,197.12 = 5,111.04 : x
2. Step 2: Convert to fraction form
   16,798.72/25,197.12 = 5,111.04/x
3. Step 3: Cross multiply
   16,798.72x = 25,197.12 × 5,111.04
4. Step 4: Simplify right side
   16,798.72x = 128,783,488.20
5. Step 5: Solve for x
   x = 128,783,488.20/16,798.72
6. Step 6: Final answer
   x = 7,666.27