Finding the Fourth Proportional to 5,469.48, 7,548.84 and 3,111.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,469.48 : 7,548.84 = 3,111.15 : x
2. Step 2: Convert to fraction form
   5,469.48/7,548.84 = 3,111.15/x
3. Step 3: Cross multiply
   5,469.48x = 7,548.84 × 3,111.15
4. Step 4: Simplify right side
   5,469.48x = 23,485,573.57
5. Step 5: Solve for x
   x = 23,485,573.57/5,469.48
6. Step 6: Final answer
   x = 4,293.93