Finding the Fourth Proportional to 21,937.52, 30,273 and 12,380.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,937.52 : 30,273 = 12,380.42 : x
2. Step 2: Convert to fraction form
   21,937.52/30,273 = 12,380.42/x
3. Step 3: Cross multiply
   21,937.52x = 30,273 × 12,380.42
4. Step 4: Simplify right side
   21,937.52x = 374,792,454.66
5. Step 5: Solve for x
   x = 374,792,454.66/21,937.52
6. Step 6: Final answer
   x = 17,084.54