Finding the Fourth Proportional to 16,891.98, 23,311.71 and 10,179.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,891.98 : 23,311.71 = 10,179.78 : x
2. Step 2: Convert to fraction form
   16,891.98/23,311.71 = 10,179.78/x
3. Step 3: Cross multiply
   16,891.98x = 23,311.71 × 10,179.78
4. Step 4: Simplify right side
   16,891.98x = 237,308,079.22
5. Step 5: Solve for x
   x = 237,308,079.22/16,891.98
6. Step 6: Final answer
   x = 14,048.57