Finding the Fourth Proportional to 12,619.20, 17,401.44 and 12,333.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,619.20 : 17,401.44 = 12,333.12 : x
2. Step 2: Convert to fraction form
   12,619.20/17,401.44 = 12,333.12/x
3. Step 3: Cross multiply
   12,619.20x = 17,401.44 × 12,333.12
4. Step 4: Simplify right side
   12,619.20x = 214,614,047.69
5. Step 5: Solve for x
   x = 214,614,047.69/12,619.20
6. Step 6: Final answer
   x = 17,006.95