Finding the Fourth Proportional to 6,435.72, 8,881.38 and 3,641.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,435.72 : 8,881.38 = 3,641.28 : x
2. Step 2: Convert to fraction form
   6,435.72/8,881.38 = 3,641.28/x
3. Step 3: Cross multiply
   6,435.72x = 8,881.38 × 3,641.28
4. Step 4: Simplify right side
   6,435.72x = 32,339,591.37
5. Step 5: Solve for x
   x = 32,339,591.37/6,435.72
6. Step 6: Final answer
   x = 5,025.02