Finding the Fourth Proportional to 5,200.40, 7,176.60 and 3,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,200.40 : 7,176.60 = 3,104.72 : x
2. Step 2: Convert to fraction form
   5,200.40/7,176.60 = 3,104.72/x
3. Step 3: Cross multiply
   5,200.40x = 7,176.60 × 3,104.72
4. Step 4: Simplify right side
   5,200.40x = 22,281,333.55
5. Step 5: Solve for x
   x = 22,281,333.55/5,200.40
6. Step 6: Final answer
   x = 4,284.54