Finding the Fourth Proportional to 7,103.58, 9,803.88 and 5,120.70

Step by Step Solution

1. Step 1: Write the proportion equation
   7,103.58 : 9,803.88 = 5,120.70 : x
2. Step 2: Convert to fraction form
   7,103.58/9,803.88 = 5,120.70/x
3. Step 3: Cross multiply
   7,103.58x = 9,803.88 × 5,120.70
4. Step 4: Simplify right side
   7,103.58x = 50,202,728.32
5. Step 5: Solve for x
   x = 50,202,728.32/7,103.58
6. Step 6: Final answer
   x = 7,067.24