Finding the Fourth Proportional to 16,835.40, 23,231.81 and 9,281.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,835.40 : 23,231.81 = 9,281.34 : x
2. Step 2: Convert to fraction form
   16,835.40/23,231.81 = 9,281.34/x
3. Step 3: Cross multiply
   16,835.40x = 23,231.81 × 9,281.34
4. Step 4: Simplify right side
   16,835.40x = 215,622,327.43
5. Step 5: Solve for x
   x = 215,622,327.43/16,835.40
6. Step 6: Final answer
   x = 12,807.67