Finding the Fourth Proportional to 7,034.50, 9,707.61 and 3,890.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,034.50 : 9,707.61 = 3,890.69 : x
2. Step 2: Convert to fraction form
   7,034.50/9,707.61 = 3,890.69/x
3. Step 3: Cross multiply
   7,034.50x = 9,707.61 × 3,890.69
4. Step 4: Simplify right side
   7,034.50x = 37,769,301.15
5. Step 5: Solve for x
   x = 37,769,301.15/7,034.50
6. Step 6: Final answer
   x = 5,369.15