Finding the Fourth Proportional to 16,051.31, 22,150.90 and 8,977.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,051.31 : 22,150.90 = 8,977.73 : x
2. Step 2: Convert to fraction form
   16,051.31/22,150.90 = 8,977.73/x
3. Step 3: Cross multiply
   16,051.31x = 22,150.90 × 8,977.73
4. Step 4: Simplify right side
   16,051.31x = 198,864,832.39
5. Step 5: Solve for x
   x = 198,864,832.39/16,051.31
6. Step 6: Final answer
   x = 12,389.32