Finding the Fourth Proportional to 12,401.70, 18,603.15 and 3,635.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,401.70 : 18,603.15 = 3,635.88 : x
2. Step 2: Convert to fraction form
   12,401.70/18,603.15 = 3,635.88/x
3. Step 3: Cross multiply
   12,401.70x = 18,603.15 × 3,635.88
4. Step 4: Simplify right side
   12,401.70x = 67,638,821.02
5. Step 5: Solve for x
   x = 67,638,821.02/12,401.70
6. Step 6: Final answer
   x = 5,454.00