Finding the Fourth Proportional to 16,429.50, 22,672.71 and 8,977.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,429.50 : 22,672.71 = 8,977.50 : x
2. Step 2: Convert to fraction form
   16,429.50/22,672.71 = 8,977.50/x
3. Step 3: Cross multiply
   16,429.50x = 22,672.71 × 8,977.50
4. Step 4: Simplify right side
   16,429.50x = 203,544,254.03
5. Step 5: Solve for x
   x = 203,544,254.03/16,429.50
6. Step 6: Final answer
   x = 12,388.95