Finding the Fourth Proportional to 5,481.39, 7,564.28 and 3,123.39

Step by Step Solution

1. Step 1: Write the proportion equation
   5,481.39 : 7,564.28 = 3,123.39 : x
2. Step 2: Convert to fraction form
   5,481.39/7,564.28 = 3,123.39/x
3. Step 3: Cross multiply
   5,481.39x = 7,564.28 × 3,123.39
4. Step 4: Simplify right side
   5,481.39x = 23,626,180.89
5. Step 5: Solve for x
   x = 23,626,180.89/5,481.39
6. Step 6: Final answer
   x = 4,310.25