Finding the Fourth Proportional to 11,434.72, 17,151.90 and 3,643.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,434.72 : 17,151.90 = 3,643.42 : x
2. Step 2: Convert to fraction form
   11,434.72/17,151.90 = 3,643.42/x
3. Step 3: Cross multiply
   11,434.72x = 17,151.90 × 3,643.42
4. Step 4: Simplify right side
   11,434.72x = 62,491,575.50
5. Step 5: Solve for x
   x = 62,491,575.50/11,434.72
6. Step 6: Final answer
   x = 5,465.07