Finding the Fourth Proportional to 12,162.15, 18,244.16 and 4,669.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,162.15 : 18,244.16 = 4,669.31 : x
2. Step 2: Convert to fraction form
   12,162.15/18,244.16 = 4,669.31/x
3. Step 3: Cross multiply
   12,162.15x = 18,244.16 × 4,669.31
4. Step 4: Simplify right side
   12,162.15x = 85,187,696.01
5. Step 5: Solve for x
   x = 85,187,696.01/12,162.15
6. Step 6: Final answer
   x = 7,004.33