Finding the Fourth Proportional to 16,530.77, 22,811.69 and 8,977.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,530.77 : 22,811.69 = 8,977.05 : x
2. Step 2: Convert to fraction form
   16,530.77/22,811.69 = 8,977.05/x
3. Step 3: Cross multiply
   16,530.77x = 22,811.69 × 8,977.05
4. Step 4: Simplify right side
   16,530.77x = 204,781,704.16
5. Step 5: Solve for x
   x = 204,781,704.16/16,530.77
6. Step 6: Final answer
   x = 12,387.91