Finding the Fourth Proportional to 6,424.55, 8,870.28 and 4,035.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,424.55 : 8,870.28 = 4,035.59 : x
2. Step 2: Convert to fraction form
   6,424.55/8,870.28 = 4,035.59/x
3. Step 3: Cross multiply
   6,424.55x = 8,870.28 × 4,035.59
4. Step 4: Simplify right side
   6,424.55x = 35,796,813.27
5. Step 5: Solve for x
   x = 35,796,813.27/6,424.55
6. Step 6: Final answer
   x = 5,571.88