Finding the Fourth Proportional to 6,109.71, 9,158.15 and 3,890.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.71 : 9,158.15 = 3,890.25 : x
2. Step 2: Convert to fraction form
   6,109.71/9,158.15 = 3,890.25/x
3. Step 3: Cross multiply
   6,109.71x = 9,158.15 × 3,890.25
4. Step 4: Simplify right side
   6,109.71x = 35,627,473.59
5. Step 5: Solve for x
   x = 35,627,473.59/6,109.71
6. Step 6: Final answer
   x = 5,831.29