Finding the Fourth Proportional to 11,949.91, 16,481.00 and 10,028.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,949.91 : 16,481.00 = 10,028.18 : x
2. Step 2: Convert to fraction form
   11,949.91/16,481.00 = 10,028.18/x
3. Step 3: Cross multiply
   11,949.91x = 16,481.00 × 10,028.18
4. Step 4: Simplify right side
   11,949.91x = 165,274,384.44
5. Step 5: Solve for x
   x = 165,274,384.44/11,949.91
6. Step 6: Final answer
   x = 13,830.60