Finding the Fourth Proportional to 3,636.24, 5,019.80 and 2,518.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.24 : 5,019.80 = 2,518.03 : x
2. Step 2: Convert to fraction form
   3,636.24/5,019.80 = 2,518.03/x
3. Step 3: Cross multiply
   3,636.24x = 5,019.80 × 2,518.03
4. Step 4: Simplify right side
   3,636.24x = 12,640,006.99
5. Step 5: Solve for x
   x = 12,640,006.99/3,636.24
6. Step 6: Final answer
   x = 3,476.12