Finding the Fourth Proportional to 16,819.17, 23,042.37 and 16,188.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,819.17 : 23,042.37 = 16,188.57 : x
2. Step 2: Convert to fraction form
   16,819.17/23,042.37 = 16,188.57/x
3. Step 3: Cross multiply
   16,819.17x = 23,042.37 × 16,188.57
4. Step 4: Simplify right side
   16,819.17x = 373,023,019.71
5. Step 5: Solve for x
   x = 373,023,019.71/16,819.17
6. Step 6: Final answer
   x = 22,178.44