Finding the Fourth Proportional to 16,495.91, 24,710.35 and 13,169.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,495.91 : 24,710.35 = 13,169.78 : x
2. Step 2: Convert to fraction form
   16,495.91/24,710.35 = 13,169.78/x
3. Step 3: Cross multiply
   16,495.91x = 24,710.35 × 13,169.78
4. Step 4: Simplify right side
   16,495.91x = 325,429,873.22
5. Step 5: Solve for x
   x = 325,429,873.22/16,495.91
6. Step 6: Final answer
   x = 19,727.91