Finding the Fourth Proportional to 5,228.00, 7,212.28 and 3,103.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,228.00 : 7,212.28 = 3,103.61 : x
2. Step 2: Convert to fraction form
   5,228.00/7,212.28 = 3,103.61/x
3. Step 3: Cross multiply
   5,228.00x = 7,212.28 × 3,103.61
4. Step 4: Simplify right side
   5,228.00x = 22,384,114.60
5. Step 5: Solve for x
   x = 22,384,114.60/5,228.00
6. Step 6: Final answer
   x = 4,281.59