Finding the Fourth Proportional to 7,139.34, 9,852.42 and 3,995.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139.34 : 9,852.42 = 3,995.52 : x
2. Step 2: Convert to fraction form
   7,139.34/9,852.42 = 3,995.52/x
3. Step 3: Cross multiply
   7,139.34x = 9,852.42 × 3,995.52
4. Step 4: Simplify right side
   7,139.34x = 39,365,541.16
5. Step 5: Solve for x
   x = 39,365,541.16/7,139.34
6. Step 6: Final answer
   x = 5,513.89