Finding the Fourth Proportional to 11,426.86, 17,143.53 and 3,636.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,426.86 : 17,143.53 = 3,636.28 : x
2. Step 2: Convert to fraction form
   11,426.86/17,143.53 = 3,636.28/x
3. Step 3: Cross multiply
   11,426.86x = 17,143.53 × 3,636.28
4. Step 4: Simplify right side
   11,426.86x = 62,338,675.27
5. Step 5: Solve for x
   x = 62,338,675.27/11,426.86
6. Step 6: Final answer
   x = 5,455.45