Finding the Fourth Proportional to 19,737.47, 27,255.89 and 12,676.19

Step by Step Solution

1. Step 1: Write the proportion equation
   19,737.47 : 27,255.89 = 12,676.19 : x
2. Step 2: Convert to fraction form
   19,737.47/27,255.89 = 12,676.19/x
3. Step 3: Cross multiply
   19,737.47x = 27,255.89 × 12,676.19
4. Step 4: Simplify right side
   19,737.47x = 345,500,776.88
5. Step 5: Solve for x
   x = 345,500,776.88/19,737.47
6. Step 6: Final answer
   x = 17,504.82