Finding the Fourth Proportional to 5,279.83, 7,286.42 and 3,042.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,279.83 : 7,286.42 = 3,042.05 : x
2. Step 2: Convert to fraction form
   5,279.83/7,286.42 = 3,042.05/x
3. Step 3: Cross multiply
   5,279.83x = 7,286.42 × 3,042.05
4. Step 4: Simplify right side
   5,279.83x = 22,165,653.96
5. Step 5: Solve for x
   x = 22,165,653.96/5,279.83
6. Step 6: Final answer
   x = 4,198.18