Finding the Fourth Proportional to 16,807.94, 25,209.20 and 5,118.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,807.94 : 25,209.20 = 5,118.42 : x
2. Step 2: Convert to fraction form
   16,807.94/25,209.20 = 5,118.42/x
3. Step 3: Cross multiply
   16,807.94x = 25,209.20 × 5,118.42
4. Step 4: Simplify right side
   16,807.94x = 129,031,247.87
5. Step 5: Solve for x
   x = 129,031,247.87/16,807.94
6. Step 6: Final answer
   x = 7,676.81