Finding the Fourth Proportional to 6,416.72, 8,855.81 and 3,622

Step by Step Solution

1. Step 1: Write the proportion equation
   6,416.72 : 8,855.81 = 3,622 : x
2. Step 2: Convert to fraction form
   6,416.72/8,855.81 = 3,622/x
3. Step 3: Cross multiply
   6,416.72x = 8,855.81 × 3,622
4. Step 4: Simplify right side
   6,416.72x = 32,075,743.82
5. Step 5: Solve for x
   x = 32,075,743.82/6,416.72
6. Step 6: Final answer
   x = 4,998.78