Finding the Fourth Proportional to 2,112.08, 3,147.46 and 2,042.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.08 : 3,147.46 = 2,042.42 : x
2. Step 2: Convert to fraction form
   2,112.08/3,147.46 = 2,042.42/x
3. Step 3: Cross multiply
   2,112.08x = 3,147.46 × 2,042.42
4. Step 4: Simplify right side
   2,112.08x = 6,428,435.25
5. Step 5: Solve for x
   x = 6,428,435.25/2,112.08
6. Step 6: Final answer
   x = 3,043.65