Finding the Fourth Proportional to 11,359.18, 17,026.17 and 8,576.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,359.18 : 17,026.17 = 8,576.83 : x
2. Step 2: Convert to fraction form
   11,359.18/17,026.17 = 8,576.83/x
3. Step 3: Cross multiply
   11,359.18x = 17,026.17 × 8,576.83
4. Step 4: Simplify right side
   11,359.18x = 146,030,565.64
5. Step 5: Solve for x
   x = 146,030,565.64/11,359.18
6. Step 6: Final answer
   x = 12,855.73