Finding the Fourth Proportional to 5,116.56, 7,061.12 and 2,879.13

Step by Step Solution

1. Step 1: Write the proportion equation
   5,116.56 : 7,061.12 = 2,879.13 : x
2. Step 2: Convert to fraction form
   5,116.56/7,061.12 = 2,879.13/x
3. Step 3: Cross multiply
   5,116.56x = 7,061.12 × 2,879.13
4. Step 4: Simplify right side
   5,116.56x = 20,329,868.03
5. Step 5: Solve for x
   x = 20,329,868.03/5,116.56
6. Step 6: Final answer
   x = 3,973.35