Finding the Fourth Proportional to 3,355.83, 5,042.25 and 2,123.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,355.83 : 5,042.25 = 2,123.82 : x
2. Step 2: Convert to fraction form
   3,355.83/5,042.25 = 2,123.82/x
3. Step 3: Cross multiply
   3,355.83x = 5,042.25 × 2,123.82
4. Step 4: Simplify right side
   3,355.83x = 10,708,831.40
5. Step 5: Solve for x
   x = 10,708,831.40/3,355.83
6. Step 6: Final answer
   x = 3,191.11