Finding the Fourth Proportional to 16,726.89, 23,069.77 and 14,217.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,726.89 : 23,069.77 = 14,217.31 : x
2. Step 2: Convert to fraction form
   16,726.89/23,069.77 = 14,217.31/x
3. Step 3: Cross multiply
   16,726.89x = 23,069.77 × 14,217.31
4. Step 4: Simplify right side
   16,726.89x = 327,990,071.72
5. Step 5: Solve for x
   x = 327,990,071.72/16,726.89
6. Step 6: Final answer
   x = 19,608.55