Finding the Fourth Proportional to 5,469.27, 7,548.24 and 3,111.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,469.27 : 7,548.24 = 3,111.78 : x
2. Step 2: Convert to fraction form
   5,469.27/7,548.24 = 3,111.78/x
3. Step 3: Cross multiply
   5,469.27x = 7,548.24 × 3,111.78
4. Step 4: Simplify right side
   5,469.27x = 23,488,462.27
5. Step 5: Solve for x
   x = 23,488,462.27/5,469.27
6. Step 6: Final answer
   x = 4,294.62