Finding the Fourth Proportional to 9,939.98, 14,912.42 and 4,944.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939.98 : 14,912.42 = 4,944.71 : x
2. Step 2: Convert to fraction form
   9,939.98/14,912.42 = 4,944.71/x
3. Step 3: Cross multiply
   9,939.98x = 14,912.42 × 4,944.71
4. Step 4: Simplify right side
   9,939.98x = 73,737,604.86
5. Step 5: Solve for x
   x = 73,737,604.86/9,939.98
6. Step 6: Final answer
   x = 7,418.28