Finding the Fourth Proportional to 22,131.36, 30,540.89 and 12,059.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,131.36 : 30,540.89 = 12,059.89 : x
2. Step 2: Convert to fraction form
   22,131.36/30,540.89 = 12,059.89/x
3. Step 3: Cross multiply
   22,131.36x = 30,540.89 × 12,059.89
4. Step 4: Simplify right side
   22,131.36x = 368,319,642.90
5. Step 5: Solve for x
   x = 368,319,642.90/22,131.36
6. Step 6: Final answer
   x = 16,642.43