Finding the Fourth Proportional to 57,671.31, 86,510.40 and 16,118.31

Step by Step Solution

1. Step 1: Write the proportion equation
   57,671.31 : 86,510.40 = 16,118.31 : x
2. Step 2: Convert to fraction form
   57,671.31/86,510.40 = 16,118.31/x
3. Step 3: Cross multiply
   57,671.31x = 86,510.40 × 16,118.31
4. Step 4: Simplify right side
   57,671.31x = 1,394,401,445.42
5. Step 5: Solve for x
   x = 1,394,401,445.42/57,671.31
6. Step 6: Final answer
   x = 24,178.43