Finding the Fourth Proportional to 9,939.86, 14,912.23 and 4,944.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939.86 : 14,912.23 = 4,944.59 : x
2. Step 2: Convert to fraction form
   9,939.86/14,912.23 = 4,944.59/x
3. Step 3: Cross multiply
   9,939.86x = 14,912.23 × 4,944.59
4. Step 4: Simplify right side
   9,939.86x = 73,734,813.69
5. Step 5: Solve for x
   x = 73,734,813.69/9,939.86
6. Step 6: Final answer
   x = 7,418.10