Finding the Fourth Proportional to 6,441.72, 8,889.41 and 4,199.33

Step by Step Solution

1. Step 1: Write the proportion equation
   6,441.72 : 8,889.41 = 4,199.33 : x
2. Step 2: Convert to fraction form
   6,441.72/8,889.41 = 4,199.33/x
3. Step 3: Cross multiply
   6,441.72x = 8,889.41 × 4,199.33
4. Step 4: Simplify right side
   6,441.72x = 37,329,566.10
5. Step 5: Solve for x
   x = 37,329,566.10/6,441.72
6. Step 6: Final answer
   x = 5,794.97