Finding the Fourth Proportional to 16,065.83, 22,140.79 and 11,581.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,065.83 : 22,140.79 = 11,581.94 : x
2. Step 2: Convert to fraction form
   16,065.83/22,140.79 = 11,581.94/x
3. Step 3: Cross multiply
   16,065.83x = 22,140.79 × 11,581.94
4. Step 4: Simplify right side
   16,065.83x = 256,433,161.67
5. Step 5: Solve for x
   x = 256,433,161.67/16,065.83
6. Step 6: Final answer
   x = 15,961.41