Finding the Fourth Proportional to 12,403.27, 18,602.64 and 3,636.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,403.27 : 18,602.64 = 3,636.10 : x
2. Step 2: Convert to fraction form
   12,403.27/18,602.64 = 3,636.10/x
3. Step 3: Cross multiply
   12,403.27x = 18,602.64 × 3,636.10
4. Step 4: Simplify right side
   12,403.27x = 67,641,012.80
5. Step 5: Solve for x
   x = 67,641,012.80/12,403.27
6. Step 6: Final answer
   x = 5,453.48