Finding the Fourth Proportional to 11,612.16, 16,018.56 and 8,069.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,612.16 : 16,018.56 = 8,069.22 : x
2. Step 2: Convert to fraction form
   11,612.16/16,018.56 = 8,069.22/x
3. Step 3: Cross multiply
   11,612.16x = 16,018.56 × 8,069.22
4. Step 4: Simplify right side
   11,612.16x = 129,257,284.72
5. Step 5: Solve for x
   x = 129,257,284.72/11,612.16
6. Step 6: Final answer
   x = 11,131.20