Finding the Fourth Proportional to 12,682.58, 17,498.81 and 8,200.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.58 : 17,498.81 = 8,200.94 : x
2. Step 2: Convert to fraction form
   12,682.58/17,498.81 = 8,200.94/x
3. Step 3: Cross multiply
   12,682.58x = 17,498.81 × 8,200.94
4. Step 4: Simplify right side
   12,682.58x = 143,506,562.38
5. Step 5: Solve for x
   x = 143,506,562.38/12,682.58
6. Step 6: Final answer
   x = 11,315.25