Finding the Fourth Proportional to 16,778.42, 25,151.99 and 5,677.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,778.42 : 25,151.99 = 5,677.39 : x
2. Step 2: Convert to fraction form
   16,778.42/25,151.99 = 5,677.39/x
3. Step 3: Cross multiply
   16,778.42x = 25,151.99 × 5,677.39
4. Step 4: Simplify right side
   16,778.42x = 142,797,659.56
5. Step 5: Solve for x
   x = 142,797,659.56/16,778.42
6. Step 6: Final answer
   x = 8,510.79