Finding the Fourth Proportional to 16,861.89, 23,269.41 and 9,308.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,861.89 : 23,269.41 = 9,308.23 : x
2. Step 2: Convert to fraction form
   16,861.89/23,269.41 = 9,308.23/x
3. Step 3: Cross multiply
   16,861.89x = 23,269.41 × 9,308.23
4. Step 4: Simplify right side
   16,861.89x = 216,596,903.90
5. Step 5: Solve for x
   x = 216,596,903.90/16,861.89
6. Step 6: Final answer
   x = 12,845.35