Finding the Fourth Proportional to 16,158.64, 22,287 and 12,179.92

Step by Step Solution

1. Step 1: Write the proportion equation
   16,158.64 : 22,287 = 12,179.92 : x
2. Step 2: Convert to fraction form
   16,158.64/22,287 = 12,179.92/x
3. Step 3: Cross multiply
   16,158.64x = 22,287 × 12,179.92
4. Step 4: Simplify right side
   16,158.64x = 271,453,877.04
5. Step 5: Solve for x
   x = 271,453,877.04/16,158.64
6. Step 6: Final answer
   x = 16,799.30