Finding the Fourth Proportional to 22,236.43, 30,686.03 and 12,165.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,236.43 : 30,686.03 = 12,165.16 : x
2. Step 2: Convert to fraction form
   22,236.43/30,686.03 = 12,165.16/x
3. Step 3: Cross multiply
   22,236.43x = 30,686.03 × 12,165.16
4. Step 4: Simplify right side
   22,236.43x = 373,300,403.89
5. Step 5: Solve for x
   x = 373,300,403.89/22,236.43
6. Step 6: Final answer
   x = 16,787.78