Finding the Fourth Proportional to 9,945.20, 14,918.16 and 3,372.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.20 : 14,918.16 = 3,372.02 : x
2. Step 2: Convert to fraction form
   9,945.20/14,918.16 = 3,372.02/x
3. Step 3: Cross multiply
   9,945.20x = 14,918.16 × 3,372.02
4. Step 4: Simplify right side
   9,945.20x = 50,304,333.88
5. Step 5: Solve for x
   x = 50,304,333.88/9,945.20
6. Step 6: Final answer
   x = 5,058.15