Finding the Fourth Proportional to 12,401.06, 17,103.56 and 8,156.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,401.06 : 17,103.56 = 8,156.48 : x
2. Step 2: Convert to fraction form
   12,401.06/17,103.56 = 8,156.48/x
3. Step 3: Cross multiply
   12,401.06x = 17,103.56 × 8,156.48
4. Step 4: Simplify right side
   12,401.06x = 139,504,749.36
5. Step 5: Solve for x
   x = 139,504,749.36/12,401.06
6. Step 6: Final answer
   x = 11,249.42