Finding the Fourth Proportional to 7,103.89, 9,803.70 and 3,960.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,103.89 : 9,803.70 = 3,960.10 : x
2. Step 2: Convert to fraction form
   7,103.89/9,803.70 = 3,960.10/x
3. Step 3: Cross multiply
   7,103.89x = 9,803.70 × 3,960.10
4. Step 4: Simplify right side
   7,103.89x = 38,823,632.37
5. Step 5: Solve for x
   x = 38,823,632.37/7,103.89
6. Step 6: Final answer
   x = 5,465.12