Finding the Fourth Proportional to 16,544.55, 22,830.81 and 8,990.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,544.55 : 22,830.81 = 8,990.73 : x
2. Step 2: Convert to fraction form
   16,544.55/22,830.81 = 8,990.73/x
3. Step 3: Cross multiply
   16,544.55x = 22,830.81 × 8,990.73
4. Step 4: Simplify right side
   16,544.55x = 205,265,648.39
5. Step 5: Solve for x
   x = 205,265,648.39/16,544.55
6. Step 6: Final answer
   x = 12,406.84