Finding the Fourth Proportional to 16,871.18, 23,282.06 and 9,317.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,871.18 : 23,282.06 = 9,317.50 : x
2. Step 2: Convert to fraction form
   16,871.18/23,282.06 = 9,317.50/x
3. Step 3: Cross multiply
   16,871.18x = 23,282.06 × 9,317.50
4. Step 4: Simplify right side
   16,871.18x = 216,930,594.05
5. Step 5: Solve for x
   x = 216,930,594.05/16,871.18
6. Step 6: Final answer
   x = 12,858.06