Finding the Fourth Proportional to 7,139.22, 10,704.72 and 2,756.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139.22 : 10,704.72 = 2,756.10 : x
2. Step 2: Convert to fraction form
   7,139.22/10,704.72 = 2,756.10/x
3. Step 3: Cross multiply
   7,139.22x = 10,704.72 × 2,756.10
4. Step 4: Simplify right side
   7,139.22x = 29,503,278.79
5. Step 5: Solve for x
   x = 29,503,278.79/7,139.22
6. Step 6: Final answer
   x = 4,132.56