Finding the Fourth Proportional to 6,142.70, 9,209.55 and 2,443.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,142.70 : 9,209.55 = 2,443.10 : x
2. Step 2: Convert to fraction form
   6,142.70/9,209.55 = 2,443.10/x
3. Step 3: Cross multiply
   6,142.70x = 9,209.55 × 2,443.10
4. Step 4: Simplify right side
   6,142.70x = 22,499,851.61
5. Step 5: Solve for x
   x = 22,499,851.61/6,142.70
6. Step 6: Final answer
   x = 3,662.86