Finding the Fourth Proportional to 16,288.17, 22,478.76 and 9,118.77

Step by Step Solution

1. Step 1: Write the proportion equation
   16,288.17 : 22,478.76 = 9,118.77 : x
2. Step 2: Convert to fraction form
   16,288.17/22,478.76 = 9,118.77/x
3. Step 3: Cross multiply
   16,288.17x = 22,478.76 × 9,118.77
4. Step 4: Simplify right side
   16,288.17x = 204,978,642.33
5. Step 5: Solve for x
   x = 204,978,642.33/16,288.17
6. Step 6: Final answer
   x = 12,584.51