Finding the Fourth Proportional to 16,690.77, 23,025.46 and 9,613.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,690.77 : 23,025.46 = 9,613.09 : x
2. Step 2: Convert to fraction form
   16,690.77/23,025.46 = 9,613.09/x
3. Step 3: Cross multiply
   16,690.77x = 23,025.46 × 9,613.09
4. Step 4: Simplify right side
   16,690.77x = 221,345,819.27
5. Step 5: Solve for x
   x = 221,345,819.27/16,690.77
6. Step 6: Final answer
   x = 13,261.57