Finding the Fourth Proportional to 7,078.56, 10,614.18 and 3,179.64

Step by Step Solution

1. Step 1: Write the proportion equation
   7,078.56 : 10,614.18 = 3,179.64 : x
2. Step 2: Convert to fraction form
   7,078.56/10,614.18 = 3,179.64/x
3. Step 3: Cross multiply
   7,078.56x = 10,614.18 × 3,179.64
4. Step 4: Simplify right side
   7,078.56x = 33,749,271.30
5. Step 5: Solve for x
   x = 33,749,271.30/7,078.56
6. Step 6: Final answer
   x = 4,767.82