Finding the Fourth Proportional to 9,986.39, 14,981.34 and 3,411.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.39 : 14,981.34 = 3,411.03 : x
2. Step 2: Convert to fraction form
   9,986.39/14,981.34 = 3,411.03/x
3. Step 3: Cross multiply
   9,986.39x = 14,981.34 × 3,411.03
4. Step 4: Simplify right side
   9,986.39x = 51,101,800.18
5. Step 5: Solve for x
   x = 51,101,800.18/9,986.39
6. Step 6: Final answer
   x = 5,117.15