Finding the Fourth Proportional to 16,156.34, 22,289.41 and 11,917.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,156.34 : 22,289.41 = 11,917.59 : x
2. Step 2: Convert to fraction form
   16,156.34/22,289.41 = 11,917.59/x
3. Step 3: Cross multiply
   16,156.34x = 22,289.41 × 11,917.59
4. Step 4: Simplify right side
   16,156.34x = 265,636,049.72
5. Step 5: Solve for x
   x = 265,636,049.72/16,156.34
6. Step 6: Final answer
   x = 16,441.60