Finding the Fourth Proportional to 6,389.72, 9,581.52 and 2,229.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,389.72 : 9,581.52 = 2,229.22 : x
2. Step 2: Convert to fraction form
   6,389.72/9,581.52 = 2,229.22/x
3. Step 3: Cross multiply
   6,389.72x = 9,581.52 × 2,229.22
4. Step 4: Simplify right side
   6,389.72x = 21,359,316.01
5. Step 5: Solve for x
   x = 21,359,316.01/6,389.72
6. Step 6: Final answer
   x = 3,342.76