Finding the Fourth Proportional to 12,495.76, 17,238.96 and 8,018.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,495.76 : 17,238.96 = 8,018.56 : x
2. Step 2: Convert to fraction form
   12,495.76/17,238.96 = 8,018.56/x
3. Step 3: Cross multiply
   12,495.76x = 17,238.96 × 8,018.56
4. Step 4: Simplify right side
   12,495.76x = 138,231,635.10
5. Step 5: Solve for x
   x = 138,231,635.10/12,495.76
6. Step 6: Final answer
   x = 11,062.28