Finding the Fourth Proportional to 12,233.72, 18,353.24 and 3,911.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,233.72 : 18,353.24 = 3,911.80 : x
2. Step 2: Convert to fraction form
   12,233.72/18,353.24 = 3,911.80/x
3. Step 3: Cross multiply
   12,233.72x = 18,353.24 × 3,911.80
4. Step 4: Simplify right side
   12,233.72x = 71,794,204.23
5. Step 5: Solve for x
   x = 71,794,204.23/12,233.72
6. Step 6: Final answer
   x = 5,868.55