Finding the Fourth Proportional to 16,841.31, 23,241.50 and 9,287.85

Step by Step Solution

1. Step 1: Write the proportion equation
   16,841.31 : 23,241.50 = 9,287.85 : x
2. Step 2: Convert to fraction form
   16,841.31/23,241.50 = 9,287.85/x
3. Step 3: Cross multiply
   16,841.31x = 23,241.50 × 9,287.85
4. Step 4: Simplify right side
   16,841.31x = 215,863,565.78
5. Step 5: Solve for x
   x = 215,863,565.78/16,841.31
6. Step 6: Final answer
   x = 12,817.50