Finding the Fourth Proportional to 9,980.52, 14,974.19 and 3,411.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980.52 : 14,974.19 = 3,411.31 : x
2. Step 2: Convert to fraction form
   9,980.52/14,974.19 = 3,411.31/x
3. Step 3: Cross multiply
   9,980.52x = 14,974.19 × 3,411.31
4. Step 4: Simplify right side
   9,980.52x = 51,081,604.09
5. Step 5: Solve for x
   x = 51,081,604.09/9,980.52
6. Step 6: Final answer
   x = 5,118.13