Finding the Fourth Proportional to 21,793.86, 30,073.76 and 12,363.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,793.86 : 30,073.76 = 12,363.30 : x
2. Step 2: Convert to fraction form
   21,793.86/30,073.76 = 12,363.30/x
3. Step 3: Cross multiply
   21,793.86x = 30,073.76 × 12,363.30
4. Step 4: Simplify right side
   21,793.86x = 371,810,917.01
5. Step 5: Solve for x
   x = 371,810,917.01/21,793.86
6. Step 6: Final answer
   x = 17,060.35