Finding the Fourth Proportional to 22,386.43, 30,894.03 and 12,315.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,386.43 : 30,894.03 = 12,315.25 : x
2. Step 2: Convert to fraction form
   22,386.43/30,894.03 = 12,315.25/x
3. Step 3: Cross multiply
   22,386.43x = 30,894.03 × 12,315.25
4. Step 4: Simplify right side
   22,386.43x = 380,467,702.96
5. Step 5: Solve for x
   x = 380,467,702.96/22,386.43
6. Step 6: Final answer
   x = 16,995.46