Finding the Fourth Proportional to 12,016.68, 18,034.32 and 7,855.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.68 : 18,034.32 = 7,855.56 : x
2. Step 2: Convert to fraction form
   12,016.68/18,034.32 = 7,855.56/x
3. Step 3: Cross multiply
   12,016.68x = 18,034.32 × 7,855.56
4. Step 4: Simplify right side
   12,016.68x = 141,669,682.82
5. Step 5: Solve for x
   x = 141,669,682.82/12,016.68
6. Step 6: Final answer
   x = 11,789.42