Finding the Fourth Proportional to 22,458.75, 30,992.46 and 12,387

Step by Step Solution

1. Step 1: Write the proportion equation
   22,458.75 : 30,992.46 = 12,387 : x
2. Step 2: Convert to fraction form
   22,458.75/30,992.46 = 12,387/x
3. Step 3: Cross multiply
   22,458.75x = 30,992.46 × 12,387
4. Step 4: Simplify right side
   22,458.75x = 383,903,602.02
5. Step 5: Solve for x
   x = 383,903,602.02/22,458.75
6. Step 6: Final answer
   x = 17,093.72