Finding the Fourth Proportional to 6,440.50, 8,887.89 and 3,646.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,440.50 : 8,887.89 = 3,646.54 : x
2. Step 2: Convert to fraction form
   6,440.50/8,887.89 = 3,646.54/x
3. Step 3: Cross multiply
   6,440.50x = 8,887.89 × 3,646.54
4. Step 4: Simplify right side
   6,440.50x = 32,410,046.40
5. Step 5: Solve for x
   x = 32,410,046.40/6,440.50
6. Step 6: Final answer
   x = 5,032.23