Finding the Fourth Proportional to 7,339.49, 10,128.50 and 3,982.35

Step by Step Solution

1. Step 1: Write the proportion equation
   7,339.49 : 10,128.50 = 3,982.35 : x
2. Step 2: Convert to fraction form
   7,339.49/10,128.50 = 3,982.35/x
3. Step 3: Cross multiply
   7,339.49x = 10,128.50 × 3,982.35
4. Step 4: Simplify right side
   7,339.49x = 40,335,231.98
5. Step 5: Solve for x
   x = 40,335,231.98/7,339.49
6. Step 6: Final answer
   x = 5,495.65