Finding the Fourth Proportional to 7,034.57, 9,707.06 and 3,890.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,034.57 : 9,707.06 = 3,890.69 : x
2. Step 2: Convert to fraction form
   7,034.57/9,707.06 = 3,890.69/x
3. Step 3: Cross multiply
   7,034.57x = 9,707.06 × 3,890.69
4. Step 4: Simplify right side
   7,034.57x = 37,767,141.82
5. Step 5: Solve for x
   x = 37,767,141.82/7,034.57
6. Step 6: Final answer
   x = 5,368.79