Finding the Fourth Proportional to 16,790.21, 23,171.04 and 9,236.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,790.21 : 23,171.04 = 9,236.82 : x
2. Step 2: Convert to fraction form
   16,790.21/23,171.04 = 9,236.82/x
3. Step 3: Cross multiply
   16,790.21x = 23,171.04 × 9,236.82
4. Step 4: Simplify right side
   16,790.21x = 214,026,725.69
5. Step 5: Solve for x
   x = 214,026,725.69/16,790.21
6. Step 6: Final answer
   x = 12,747.12