Finding the Fourth Proportional to 9,945.84, 14,917.98 and 4,399.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.84 : 14,917.98 = 4,399.38 : x
2. Step 2: Convert to fraction form
   9,945.84/14,917.98 = 4,399.38/x
3. Step 3: Cross multiply
   9,945.84x = 14,917.98 × 4,399.38
4. Step 4: Simplify right side
   9,945.84x = 65,629,862.85
5. Step 5: Solve for x
   x = 65,629,862.85/9,945.84
6. Step 6: Final answer
   x = 6,598.72