Finding the Fourth Proportional to 16,861.99, 23,269.61 and 9,308.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,861.99 : 23,269.61 = 9,308.38 : x
2. Step 2: Convert to fraction form
   16,861.99/23,269.61 = 9,308.38/x
3. Step 3: Cross multiply
   16,861.99x = 23,269.61 × 9,308.38
4. Step 4: Simplify right side
   16,861.99x = 216,602,372.33
5. Step 5: Solve for x
   x = 216,602,372.33/16,861.99
6. Step 6: Final answer
   x = 12,845.60