Finding the Fourth Proportional to 7,034.31, 9,707.04 and 3,890.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,034.31 : 9,707.04 = 3,890.43 : x
2. Step 2: Convert to fraction form
   7,034.31/9,707.04 = 3,890.43/x
3. Step 3: Cross multiply
   7,034.31x = 9,707.04 × 3,890.43
4. Step 4: Simplify right side
   7,034.31x = 37,764,559.63
5. Step 5: Solve for x
   x = 37,764,559.63/7,034.31
6. Step 6: Final answer
   x = 5,368.62