Finding the Fourth Proportional to 12,036.31, 16,610.76 and 7,257.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,036.31 : 16,610.76 = 7,257.79 : x
2. Step 2: Convert to fraction form
   12,036.31/16,610.76 = 7,257.79/x
3. Step 3: Cross multiply
   12,036.31x = 16,610.76 × 7,257.79
4. Step 4: Simplify right side
   12,036.31x = 120,557,407.82
5. Step 5: Solve for x
   x = 120,557,407.82/12,036.31
6. Step 6: Final answer
   x = 10,016.14