Finding the Fourth Proportional to 6,441.89, 8,887.79 and 3,608.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,441.89 : 8,887.79 = 3,608.88 : x
2. Step 2: Convert to fraction form
   6,441.89/8,887.79 = 3,608.88/x
3. Step 3: Cross multiply
   6,441.89x = 8,887.79 × 3,608.88
4. Step 4: Simplify right side
   6,441.89x = 32,074,967.58
5. Step 5: Solve for x
   x = 32,074,967.58/6,441.89
6. Step 6: Final answer
   x = 4,979.12