Finding the Fourth Proportional to 12,892.85, 19,306.46 and 8,496.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,892.85 : 19,306.46 = 8,496.98 : x
2. Step 2: Convert to fraction form
   12,892.85/19,306.46 = 8,496.98/x
3. Step 3: Cross multiply
   12,892.85x = 19,306.46 × 8,496.98
4. Step 4: Simplify right side
   12,892.85x = 164,046,604.49
5. Step 5: Solve for x
   x = 164,046,604.49/12,892.85
6. Step 6: Final answer
   x = 12,723.84