Finding the Fourth Proportional to 3,185.01, 4,775.19 and 2,142.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.01 : 4,775.19 = 2,142.42 : x
2. Step 2: Convert to fraction form
   3,185.01/4,775.19 = 2,142.42/x
3. Step 3: Cross multiply
   3,185.01x = 4,775.19 × 2,142.42
4. Step 4: Simplify right side
   3,185.01x = 10,230,462.56
5. Step 5: Solve for x
   x = 10,230,462.56/3,185.01
6. Step 6: Final answer
   x = 3,212.07