Finding the Fourth Proportional to 11,146.32, 16,715.49 and 5,222.19

Step by Step Solution

1. Step 1: Write the proportion equation
   11,146.32 : 16,715.49 = 5,222.19 : x
2. Step 2: Convert to fraction form
   11,146.32/16,715.49 = 5,222.19/x
3. Step 3: Cross multiply
   11,146.32x = 16,715.49 × 5,222.19
4. Step 4: Simplify right side
   11,146.32x = 87,291,464.72
5. Step 5: Solve for x
   x = 87,291,464.72/11,146.32
6. Step 6: Final answer
   x = 7,831.42