Finding the Fourth Proportional to 12,766.86, 19,139.94 and 5,741.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,766.86 : 19,139.94 = 5,741.73 : x
2. Step 2: Convert to fraction form
   12,766.86/19,139.94 = 5,741.73/x
3. Step 3: Cross multiply
   12,766.86x = 19,139.94 × 5,741.73
4. Step 4: Simplify right side
   12,766.86x = 109,896,367.70
5. Step 5: Solve for x
   x = 109,896,367.70/12,766.86
6. Step 6: Final answer
   x = 8,607.94