Finding the Fourth Proportional to 4,499.39, 6,215.22 and 4,080.22

Step by Step Solution

1. Step 1: Write the proportion equation
   4,499.39 : 6,215.22 = 4,080.22 : x
2. Step 2: Convert to fraction form
   4,499.39/6,215.22 = 4,080.22/x
3. Step 3: Cross multiply
   4,499.39x = 6,215.22 × 4,080.22
4. Step 4: Simplify right side
   4,499.39x = 25,359,464.95
5. Step 5: Solve for x
   x = 25,359,464.95/4,499.39
6. Step 6: Final answer
   x = 5,636.20