Finding the Fourth Proportional to 22,111.18, 30,513.59 and 12,039.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,111.18 : 30,513.59 = 12,039.64 : x
2. Step 2: Convert to fraction form
   22,111.18/30,513.59 = 12,039.64/x
3. Step 3: Cross multiply
   22,111.18x = 30,513.59 × 12,039.64
4. Step 4: Simplify right side
   22,111.18x = 367,372,638.71
5. Step 5: Solve for x
   x = 367,372,638.71/22,111.18
6. Step 6: Final answer
   x = 16,614.79