Finding the Fourth Proportional to 16,423.31, 22,664.18 and 8,971.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,423.31 : 22,664.18 = 8,971.31 : x
2. Step 2: Convert to fraction form
   16,423.31/22,664.18 = 8,971.31/x
3. Step 3: Cross multiply
   16,423.31x = 22,664.18 × 8,971.31
4. Step 4: Simplify right side
   16,423.31x = 203,327,463.76
5. Step 5: Solve for x
   x = 203,327,463.76/16,423.31
6. Step 6: Final answer
   x = 12,380.42