Finding the Fourth Proportional to 7,287.92, 10,918.56 and 3,814.64

Step by Step Solution

1. Step 1: Write the proportion equation
   7,287.92 : 10,918.56 = 3,814.64 : x
2. Step 2: Convert to fraction form
   7,287.92/10,918.56 = 3,814.64/x
3. Step 3: Cross multiply
   7,287.92x = 10,918.56 × 3,814.64
4. Step 4: Simplify right side
   7,287.92x = 41,650,375.72
5. Step 5: Solve for x
   x = 41,650,375.72/7,287.92
6. Step 6: Final answer
   x = 5,714.99