Finding the Fourth Proportional to 16,111.20, 24,184.49 and 12,800.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,111.20 : 24,184.49 = 12,800.73 : x
2. Step 2: Convert to fraction form
   16,111.20/24,184.49 = 12,800.73/x
3. Step 3: Cross multiply
   16,111.20x = 24,184.49 × 12,800.73
4. Step 4: Simplify right side
   16,111.20x = 309,579,062.67
5. Step 5: Solve for x
   x = 309,579,062.67/16,111.20
6. Step 6: Final answer
   x = 19,215.15