Finding the Fourth Proportional to 5,147.97, 7,104.27 and 2,909.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,147.97 : 7,104.27 = 2,909.89 : x
2. Step 2: Convert to fraction form
   5,147.97/7,104.27 = 2,909.89/x
3. Step 3: Cross multiply
   5,147.97x = 7,104.27 × 2,909.89
4. Step 4: Simplify right side
   5,147.97x = 20,672,644.23
5. Step 5: Solve for x
   x = 20,672,644.23/5,147.97
6. Step 6: Final answer
   x = 4,015.69