Finding the Fourth Proportional to 16,498.45, 22,771.17 and 9,787.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,498.45 : 22,771.17 = 9,787.80 : x
2. Step 2: Convert to fraction form
   16,498.45/22,771.17 = 9,787.80/x
3. Step 3: Cross multiply
   16,498.45x = 22,771.17 × 9,787.80
4. Step 4: Simplify right side
   16,498.45x = 222,879,657.73
5. Step 5: Solve for x
   x = 222,879,657.73/16,498.45
6. Step 6: Final answer
   x = 13,509.13