Finding the Fourth Proportional to 16,730.28, 23,087.57 and 9,656.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,730.28 : 23,087.57 = 9,656.55 : x
2. Step 2: Convert to fraction form
   16,730.28/23,087.57 = 9,656.55/x
3. Step 3: Cross multiply
   16,730.28x = 23,087.57 × 9,656.55
4. Step 4: Simplify right side
   16,730.28x = 222,946,225.80
5. Step 5: Solve for x
   x = 222,946,225.80/16,730.28
6. Step 6: Final answer
   x = 13,325.91