Finding the Fourth Proportional to 4,747.50, 7,124.49 and 2,849.40

Step by Step Solution

1. Step 1: Write the proportion equation
   4,747.50 : 7,124.49 = 2,849.40 : x
2. Step 2: Convert to fraction form
   4,747.50/7,124.49 = 2,849.40/x
3. Step 3: Cross multiply
   4,747.50x = 7,124.49 × 2,849.40
4. Step 4: Simplify right side
   4,747.50x = 20,300,521.81
5. Step 5: Solve for x
   x = 20,300,521.81/4,747.50
6. Step 6: Final answer
   x = 4,276.04