Finding the Fourth Proportional to 7,048.14, 10,566.72 and 3,155.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,048.14 : 10,566.72 = 3,155.28 : x
2. Step 2: Convert to fraction form
   7,048.14/10,566.72 = 3,155.28/x
3. Step 3: Cross multiply
   7,048.14x = 10,566.72 × 3,155.28
4. Step 4: Simplify right side
   7,048.14x = 33,340,960.28
5. Step 5: Solve for x
   x = 33,340,960.28/7,048.14
6. Step 6: Final answer
   x = 4,730.46