Finding the Fourth Proportional to 5,517.47, 8,269.72 and 4,273.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,517.47 : 8,269.72 = 4,273.31 : x
2. Step 2: Convert to fraction form
   5,517.47/8,269.72 = 4,273.31/x
3. Step 3: Cross multiply
   5,517.47x = 8,269.72 × 4,273.31
4. Step 4: Simplify right side
   5,517.47x = 35,339,077.17
5. Step 5: Solve for x
   x = 35,339,077.17/5,517.47
6. Step 6: Final answer
   x = 6,404.94