Finding the Fourth Proportional to 16,690.52, 23,025.12 and 9,612.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,690.52 : 23,025.12 = 9,612.84 : x
2. Step 2: Convert to fraction form
   16,690.52/23,025.12 = 9,612.84/x
3. Step 3: Cross multiply
   16,690.52x = 23,025.12 × 9,612.84
4. Step 4: Simplify right side
   16,690.52x = 221,336,794.54
5. Step 5: Solve for x
   x = 221,336,794.54/16,690.52
6. Step 6: Final answer
   x = 13,261.23