Finding the Fourth Proportional to 16,959.35, 23,405.34 and 9,408.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,959.35 : 23,405.34 = 9,408.12 : x
2. Step 2: Convert to fraction form
   16,959.35/23,405.34 = 9,408.12/x
3. Step 3: Cross multiply
   16,959.35x = 23,405.34 × 9,408.12
4. Step 4: Simplify right side
   16,959.35x = 220,200,201.49
5. Step 5: Solve for x
   x = 220,200,201.49/16,959.35
6. Step 6: Final answer
   x = 12,984.00