Finding the Fourth Proportional to 22,311.52, 30,791.28 and 12,375.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,311.52 : 30,791.28 = 12,375.52 : x
2. Step 2: Convert to fraction form
   22,311.52/30,791.28 = 12,375.52/x
3. Step 3: Cross multiply
   22,311.52x = 30,791.28 × 12,375.52
4. Step 4: Simplify right side
   22,311.52x = 381,058,101.47
5. Step 5: Solve for x
   x = 381,058,101.47/22,311.52
6. Step 6: Final answer
   x = 17,078.98