Finding the Fourth Proportional to 11,300.20, 16,933.61 and 10,668.35

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300.20 : 16,933.61 = 10,668.35 : x
2. Step 2: Convert to fraction form
   11,300.20/16,933.61 = 10,668.35/x
3. Step 3: Cross multiply
   11,300.20x = 16,933.61 × 10,668.35
4. Step 4: Simplify right side
   11,300.20x = 180,653,540.23
5. Step 5: Solve for x
   x = 180,653,540.23/11,300.20
6. Step 6: Final answer
   x = 15,986.76