Finding the Fourth Proportional to 16,820.16, 23,043.73 and 16,189.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,820.16 : 23,043.73 = 16,189.58 : x
2. Step 2: Convert to fraction form
   16,820.16/23,043.73 = 16,189.58/x
3. Step 3: Cross multiply
   16,820.16x = 23,043.73 × 16,189.58
4. Step 4: Simplify right side
   16,820.16x = 373,068,310.33
5. Step 5: Solve for x
   x = 373,068,310.33/16,820.16
6. Step 6: Final answer
   x = 22,179.83