Finding the Fourth Proportional to 7,205.22, 10,814.31 and 3,920.67

Step by Step Solution

1. Step 1: Write the proportion equation
   7,205.22 : 10,814.31 = 3,920.67 : x
2. Step 2: Convert to fraction form
   7,205.22/10,814.31 = 3,920.67/x
3. Step 3: Cross multiply
   7,205.22x = 10,814.31 × 3,920.67
4. Step 4: Simplify right side
   7,205.22x = 42,399,340.79
5. Step 5: Solve for x
   x = 42,399,340.79/7,205.22
6. Step 6: Final answer
   x = 5,884.53