Finding the Fourth Proportional to 12,766.73, 19,139.77 and 5,741.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,766.73 : 19,139.77 = 5,741.60 : x
2. Step 2: Convert to fraction form
   12,766.73/19,139.77 = 5,741.60/x
3. Step 3: Cross multiply
   12,766.73x = 19,139.77 × 5,741.60
4. Step 4: Simplify right side
   12,766.73x = 109,892,903.43
5. Step 5: Solve for x
   x = 109,892,903.43/12,766.73
6. Step 6: Final answer
   x = 8,607.76