Finding the Fourth Proportional to 7,010.34, 10,519.76 and 3,115.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,010.34 : 10,519.76 = 3,115.05 : x
2. Step 2: Convert to fraction form
   7,010.34/10,519.76 = 3,115.05/x
3. Step 3: Cross multiply
   7,010.34x = 10,519.76 × 3,115.05
4. Step 4: Simplify right side
   7,010.34x = 32,769,578.39
5. Step 5: Solve for x
   x = 32,769,578.39/7,010.34
6. Step 6: Final answer
   x = 4,674.46