Finding the Fourth Proportional to 17,039.76, 25,558.56 and 8,161.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,039.76 : 25,558.56 = 8,161.42 : x
2. Step 2: Convert to fraction form
   17,039.76/25,558.56 = 8,161.42/x
3. Step 3: Cross multiply
   17,039.76x = 25,558.56 × 8,161.42
4. Step 4: Simplify right side
   17,039.76x = 208,594,142.76
5. Step 5: Solve for x
   x = 208,594,142.76/17,039.76
6. Step 6: Final answer
   x = 12,241.61