Finding the Fourth Proportional to 3,867.23, 5,336.69 and 2,142.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867.23 : 5,336.69 = 2,142.47 : x
2. Step 2: Convert to fraction form
   3,867.23/5,336.69 = 2,142.47/x
3. Step 3: Cross multiply
   3,867.23x = 5,336.69 × 2,142.47
4. Step 4: Simplify right side
   3,867.23x = 11,433,660.83
5. Step 5: Solve for x
   x = 11,433,660.83/3,867.23
6. Step 6: Final answer
   x = 2,956.55