Finding the Fourth Proportional to 11,926.72, 17,867.52 and 11,426.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,926.72 : 17,867.52 = 11,426.24 : x
2. Step 2: Convert to fraction form
   11,926.72/17,867.52 = 11,426.24/x
3. Step 3: Cross multiply
   11,926.72x = 17,867.52 × 11,426.24
4. Step 4: Simplify right side
   11,926.72x = 204,158,571.72
5. Step 5: Solve for x
   x = 204,158,571.72/11,926.72
6. Step 6: Final answer
   x = 17,117.75