Finding the Fourth Proportional to 5,160.27, 7,121.61 and 3,744.39

Step by Step Solution

1. Step 1: Write the proportion equation
   5,160.27 : 7,121.61 = 3,744.39 : x
2. Step 2: Convert to fraction form
   5,160.27/7,121.61 = 3,744.39/x
3. Step 3: Cross multiply
   5,160.27x = 7,121.61 × 3,744.39
4. Step 4: Simplify right side
   5,160.27x = 26,666,085.27
5. Step 5: Solve for x
   x = 26,666,085.27/5,160.27
6. Step 6: Final answer
   x = 5,167.58