Finding the Fourth Proportional to 6,572.05, 9,069.83 and 3,919.57

Step by Step Solution

1. Step 1: Write the proportion equation
   6,572.05 : 9,069.83 = 3,919.57 : x
2. Step 2: Convert to fraction form
   6,572.05/9,069.83 = 3,919.57/x
3. Step 3: Cross multiply
   6,572.05x = 9,069.83 × 3,919.57
4. Step 4: Simplify right side
   6,572.05x = 35,549,833.57
5. Step 5: Solve for x
   x = 35,549,833.57/6,572.05
6. Step 6: Final answer
   x = 5,409.25