Finding the Fourth Proportional to 16,818.64, 25,227.94 and 5,131.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,818.64 : 25,227.94 = 5,131.96 : x
2. Step 2: Convert to fraction form
   16,818.64/25,227.94 = 5,131.96/x
3. Step 3: Cross multiply
   16,818.64x = 25,227.94 × 5,131.96
4. Step 4: Simplify right side
   16,818.64x = 129,468,778.96
5. Step 5: Solve for x
   x = 129,468,778.96/16,818.64
6. Step 6: Final answer
   x = 7,697.93