Finding the Fourth Proportional to 5,139.10, 7,092.27 and 2,900.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,139.10 : 7,092.27 = 2,900.16 : x
2. Step 2: Convert to fraction form
   5,139.10/7,092.27 = 2,900.16/x
3. Step 3: Cross multiply
   5,139.10x = 7,092.27 × 2,900.16
4. Step 4: Simplify right side
   5,139.10x = 20,568,702.04
5. Step 5: Solve for x
   x = 20,568,702.04/5,139.10
6. Step 6: Final answer
   x = 4,002.40