Finding the Fourth Proportional to 12,676.46, 19,012.86 and 7,413.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,676.46 : 19,012.86 = 7,413.89 : x
2. Step 2: Convert to fraction form
   12,676.46/19,012.86 = 7,413.89/x
3. Step 3: Cross multiply
   12,676.46x = 19,012.86 × 7,413.89
4. Step 4: Simplify right side
   12,676.46x = 140,959,157.56
5. Step 5: Solve for x
   x = 140,959,157.56/12,676.46
6. Step 6: Final answer
   x = 11,119.76