Finding the Fourth Proportional to 10,975.24, 16,442.22 and 5,422.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,975.24 : 16,442.22 = 5,422.12 : x
2. Step 2: Convert to fraction form
   10,975.24/16,442.22 = 5,422.12/x
3. Step 3: Cross multiply
   10,975.24x = 16,442.22 × 5,422.12
4. Step 4: Simplify right side
   10,975.24x = 89,151,689.91
5. Step 5: Solve for x
   x = 89,151,689.91/10,975.24
6. Step 6: Final answer
   x = 8,122.98