Finding the Fourth Proportional to 16,155.34, 22,288.04 and 11,916.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,155.34 : 22,288.04 = 11,916.59 : x
2. Step 2: Convert to fraction form
   16,155.34/22,288.04 = 11,916.59/x
3. Step 3: Cross multiply
   16,155.34x = 22,288.04 × 11,916.59
4. Step 4: Simplify right side
   16,155.34x = 265,597,263.56
5. Step 5: Solve for x
   x = 265,597,263.56/16,155.34
6. Step 6: Final answer
   x = 16,440.22