Finding the Fourth Proportional to 16,959.02, 23,404.89 and 9,407.79

Step by Step Solution

1. Step 1: Write the proportion equation
   16,959.02 : 23,404.89 = 9,407.79 : x
2. Step 2: Convert to fraction form
   16,959.02/23,404.89 = 9,407.79/x
3. Step 3: Cross multiply
   16,959.02x = 23,404.89 × 9,407.79
4. Step 4: Simplify right side
   16,959.02x = 220,188,263.85
5. Step 5: Solve for x
   x = 220,188,263.85/16,959.02
6. Step 6: Final answer
   x = 12,983.55