Finding the Fourth Proportional to 3,636.92, 5,043.23 and 3,513.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.92 : 5,043.23 = 3,513.80 : x
2. Step 2: Convert to fraction form
   3,636.92/5,043.23 = 3,513.80/x
3. Step 3: Cross multiply
   3,636.92x = 5,043.23 × 3,513.80
4. Step 4: Simplify right side
   3,636.92x = 17,720,901.57
5. Step 5: Solve for x
   x = 17,720,901.57/3,636.92
6. Step 6: Final answer
   x = 4,872.50