Finding the Fourth Proportional to 16,959.53, 23,404.22 and 9,406.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,959.53 : 23,404.22 = 9,406.56 : x
2. Step 2: Convert to fraction form
   16,959.53/23,404.22 = 9,406.56/x
3. Step 3: Cross multiply
   16,959.53x = 23,404.22 × 9,406.56
4. Step 4: Simplify right side
   16,959.53x = 220,153,199.68
5. Step 5: Solve for x
   x = 220,153,199.68/16,959.53
6. Step 6: Final answer
   x = 12,981.09