Finding the Fourth Proportional to 7,078.44, 10,620.96 and 3,180.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,078.44 : 10,620.96 = 3,180.72 : x
2. Step 2: Convert to fraction form
   7,078.44/10,620.96 = 3,180.72/x
3. Step 3: Cross multiply
   7,078.44x = 10,620.96 × 3,180.72
4. Step 4: Simplify right side
   7,078.44x = 33,782,299.89
5. Step 5: Solve for x
   x = 33,782,299.89/7,078.44
6. Step 6: Final answer
   x = 4,772.56