Finding the Fourth Proportional to 7,036.28, 9,710.04 and 3,892.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,036.28 : 9,710.04 = 3,892.40 : x
2. Step 2: Convert to fraction form
   7,036.28/9,710.04 = 3,892.40/x
3. Step 3: Cross multiply
   7,036.28x = 9,710.04 × 3,892.40
4. Step 4: Simplify right side
   7,036.28x = 37,795,359.70
5. Step 5: Solve for x
   x = 37,795,359.70/7,036.28
6. Step 6: Final answer
   x = 5,371.50