Finding the Fourth Proportional to 13,517.10, 20,275.69 and 3,656.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,517.10 : 20,275.69 = 3,656.62 : x
2. Step 2: Convert to fraction form
   13,517.10/20,275.69 = 3,656.62/x
3. Step 3: Cross multiply
   13,517.10x = 20,275.69 × 3,656.62
4. Step 4: Simplify right side
   13,517.10x = 74,140,469.89
5. Step 5: Solve for x
   x = 74,140,469.89/13,517.10
6. Step 6: Final answer
   x = 5,484.94