Finding the Fourth Proportional to 16,819.91, 23,043.38 and 16,189.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,819.91 : 23,043.38 = 16,189.32 : x
2. Step 2: Convert to fraction form
   16,819.91/23,043.38 = 16,189.32/x
3. Step 3: Cross multiply
   16,819.91x = 23,043.38 × 16,189.32
4. Step 4: Simplify right side
   16,819.91x = 373,056,693.17
5. Step 5: Solve for x
   x = 373,056,693.17/16,819.91
6. Step 6: Final answer
   x = 22,179.48