Finding the Fourth Proportional to 8,939.73, 12,326.31 and 7,255.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,939.73 : 12,326.31 = 7,255.83 : x
2. Step 2: Convert to fraction form
   8,939.73/12,326.31 = 7,255.83/x
3. Step 3: Cross multiply
   8,939.73x = 12,326.31 × 7,255.83
4. Step 4: Simplify right side
   8,939.73x = 89,437,609.89
5. Step 5: Solve for x
   x = 89,437,609.89/8,939.73
6. Step 6: Final answer
   x = 10,004.51