Finding the Fourth Proportional to 16,778.19, 25,151.64 and 5,677.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,778.19 : 25,151.64 = 5,677.16 : x
2. Step 2: Convert to fraction form
   16,778.19/25,151.64 = 5,677.16/x
3. Step 3: Cross multiply
   16,778.19x = 25,151.64 × 5,677.16
4. Step 4: Simplify right side
   16,778.19x = 142,789,758.78
5. Step 5: Solve for x
   x = 142,789,758.78/16,778.19
6. Step 6: Final answer
   x = 8,510.44