Finding the Fourth Proportional to 5,456.27, 8,178.01 and 2,528.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,456.27 : 8,178.01 = 2,528.42 : x
2. Step 2: Convert to fraction form
   5,456.27/8,178.01 = 2,528.42/x
3. Step 3: Cross multiply
   5,456.27x = 8,178.01 × 2,528.42
4. Step 4: Simplify right side
   5,456.27x = 20,677,458.17
5. Step 5: Solve for x
   x = 20,677,458.17/5,456.27
6. Step 6: Final answer
   x = 3,789.67