Finding the Fourth Proportional to 16,959.34, 23,403.90 and 9,406.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,959.34 : 23,403.90 = 9,406.82 : x
2. Step 2: Convert to fraction form
   16,959.34/23,403.90 = 9,406.82/x
3. Step 3: Cross multiply
   16,959.34x = 23,403.90 × 9,406.82
4. Step 4: Simplify right side
   16,959.34x = 220,156,274.60
5. Step 5: Solve for x
   x = 220,156,274.60/16,959.34
6. Step 6: Final answer
   x = 12,981.42