Finding the Fourth Proportional to 10,786.68, 16,182.18 and 3,393

Step by Step Solution

1. Step 1: Write the proportion equation
   10,786.68 : 16,182.18 = 3,393 : x
2. Step 2: Convert to fraction form
   10,786.68/16,182.18 = 3,393/x
3. Step 3: Cross multiply
   10,786.68x = 16,182.18 × 3,393
4. Step 4: Simplify right side
   10,786.68x = 54,906,136.74
5. Step 5: Solve for x
   x = 54,906,136.74/10,786.68
6. Step 6: Final answer
   x = 5,090.18