Finding the Fourth Proportional to 10,680.59, 16,020.41 and 3,661.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,680.59 : 16,020.41 = 3,661.23 : x
2. Step 2: Convert to fraction form
   10,680.59/16,020.41 = 3,661.23/x
3. Step 3: Cross multiply
   10,680.59x = 16,020.41 × 3,661.23
4. Step 4: Simplify right side
   10,680.59x = 58,654,387.40
5. Step 5: Solve for x
   x = 58,654,387.40/10,680.59
6. Step 6: Final answer
   x = 5,491.68