Finding the Fourth Proportional to 12,493.76, 17,236.20 and 8,016.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,493.76 : 17,236.20 = 8,016.56 : x
2. Step 2: Convert to fraction form
   12,493.76/17,236.20 = 8,016.56/x
3. Step 3: Cross multiply
   12,493.76x = 17,236.20 × 8,016.56
4. Step 4: Simplify right side
   12,493.76x = 138,175,031.47
5. Step 5: Solve for x
   x = 138,175,031.47/12,493.76
6. Step 6: Final answer
   x = 11,059.52