Finding the Fourth Proportional to 5,162.91, 7,124.83 and 2,805.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,162.91 : 7,124.83 = 2,805.06 : x
2. Step 2: Convert to fraction form
   5,162.91/7,124.83 = 2,805.06/x
3. Step 3: Cross multiply
   5,162.91x = 7,124.83 × 2,805.06
4. Step 4: Simplify right side
   5,162.91x = 19,985,595.35
5. Step 5: Solve for x
   x = 19,985,595.35/5,162.91
6. Step 6: Final answer
   x = 3,871.00