Finding the Fourth Proportional to 16,589.25, 22,912.61 and 10,990.53

Step by Step Solution

1. Step 1: Write the proportion equation
   16,589.25 : 22,912.61 = 10,990.53 : x
2. Step 2: Convert to fraction form
   16,589.25/22,912.61 = 10,990.53/x
3. Step 3: Cross multiply
   16,589.25x = 22,912.61 × 10,990.53
4. Step 4: Simplify right side
   16,589.25x = 251,821,672.63
5. Step 5: Solve for x
   x = 251,821,672.63/16,589.25
6. Step 6: Final answer
   x = 15,179.81