Finding the Fourth Proportional to 12,227.99, 18,338.01 and 3,906.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,227.99 : 18,338.01 = 3,906.05 : x
2. Step 2: Convert to fraction form
   12,227.99/18,338.01 = 3,906.05/x
3. Step 3: Cross multiply
   12,227.99x = 18,338.01 × 3,906.05
4. Step 4: Simplify right side
   12,227.99x = 71,629,092.27
5. Step 5: Solve for x
   x = 71,629,092.27/12,227.99
6. Step 6: Final answer
   x = 5,857.80