Finding the Fourth Proportional to 9,918.09, 14,883.21 and 3,993.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,918.09 : 14,883.21 = 3,993.89 : x
2. Step 2: Convert to fraction form
   9,918.09/14,883.21 = 3,993.89/x
3. Step 3: Cross multiply
   9,918.09x = 14,883.21 × 3,993.89
4. Step 4: Simplify right side
   9,918.09x = 59,441,829.17
5. Step 5: Solve for x
   x = 59,441,829.17/9,918.09
6. Step 6: Final answer
   x = 5,993.27