Finding the Fourth Proportional to 5,469.75, 7,548.59 and 3,111.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,469.75 : 7,548.59 = 3,111.89 : x
2. Step 2: Convert to fraction form
   5,469.75/7,548.59 = 3,111.89/x
3. Step 3: Cross multiply
   5,469.75x = 7,548.59 × 3,111.89
4. Step 4: Simplify right side
   5,469.75x = 23,490,351.77
5. Step 5: Solve for x
   x = 23,490,351.77/5,469.75
6. Step 6: Final answer
   x = 4,294.59