Finding the Fourth Proportional to 12,401.03, 18,601.69 and 3,636.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,401.03 : 18,601.69 = 3,636.12 : x
2. Step 2: Convert to fraction form
   12,401.03/18,601.69 = 3,636.12/x
3. Step 3: Cross multiply
   12,401.03x = 18,601.69 × 3,636.12
4. Step 4: Simplify right side
   12,401.03x = 67,637,977.04
5. Step 5: Solve for x
   x = 67,637,977.04/12,401.03
6. Step 6: Final answer
   x = 5,454.22