Finding the Fourth Proportional to 11,757.77, 16,219.94 and 8,566.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,757.77 : 16,219.94 = 8,566.10 : x
2. Step 2: Convert to fraction form
   11,757.77/16,219.94 = 8,566.10/x
3. Step 3: Cross multiply
   11,757.77x = 16,219.94 × 8,566.10
4. Step 4: Simplify right side
   11,757.77x = 138,941,504.10
5. Step 5: Solve for x
   x = 138,941,504.10/11,757.77
6. Step 6: Final answer
   x = 11,817.00