Finding the Fourth Proportional to 16,942.56, 25,417.20 and 5,255.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,942.56 : 25,417.20 = 5,255.28 : x
2. Step 2: Convert to fraction form
   16,942.56/25,417.20 = 5,255.28/x
3. Step 3: Cross multiply
   16,942.56x = 25,417.20 × 5,255.28
4. Step 4: Simplify right side
   16,942.56x = 133,574,502.82
5. Step 5: Solve for x
   x = 133,574,502.82/16,942.56
6. Step 6: Final answer
   x = 7,883.96