Finding the Fourth Proportional to 7,039.98, 9,714.74 and 3,896.24

Step by Step Solution

1. Step 1: Write the proportion equation
   7,039.98 : 9,714.74 = 3,896.24 : x
2. Step 2: Convert to fraction form
   7,039.98/9,714.74 = 3,896.24/x
3. Step 3: Cross multiply
   7,039.98x = 9,714.74 × 3,896.24
4. Step 4: Simplify right side
   7,039.98x = 37,850,890.52
5. Step 5: Solve for x
   x = 37,850,890.52/7,039.98
6. Step 6: Final answer
   x = 5,376.56