Finding the Fourth Proportional to 16,380.88, 22,581.12 and 12,837.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,380.88 : 22,581.12 = 12,837.94 : x
2. Step 2: Convert to fraction form
   16,380.88/22,581.12 = 12,837.94/x
3. Step 3: Cross multiply
   16,380.88x = 22,581.12 × 12,837.94
4. Step 4: Simplify right side
   16,380.88x = 289,895,063.69
5. Step 5: Solve for x
   x = 289,895,063.69/16,380.88
6. Step 6: Final answer
   x = 17,697.16