Finding the Fourth Proportional to 16,081.71, 22,201.29 and 12,112.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,081.71 : 22,201.29 = 12,112.29 : x
2. Step 2: Convert to fraction form
   16,081.71/22,201.29 = 12,112.29/x
3. Step 3: Cross multiply
   16,081.71x = 22,201.29 × 12,112.29
4. Step 4: Simplify right side
   16,081.71x = 268,908,462.85
5. Step 5: Solve for x
   x = 268,908,462.85/16,081.71
6. Step 6: Final answer
   x = 16,721.38