Finding the Fourth Proportional to 16,930.42, 23,356.20 and 10,964.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,930.42 : 23,356.20 = 10,964.05 : x
2. Step 2: Convert to fraction form
   16,930.42/23,356.20 = 10,964.05/x
3. Step 3: Cross multiply
   16,930.42x = 23,356.20 × 10,964.05
4. Step 4: Simplify right side
   16,930.42x = 256,078,544.61
5. Step 5: Solve for x
   x = 256,078,544.61/16,930.42
6. Step 6: Final answer
   x = 15,125.35