Finding the Fourth Proportional to 12,766.15, 17,619.40 and 7,459.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,766.15 : 17,619.40 = 7,459.94 : x
2. Step 2: Convert to fraction form
   12,766.15/17,619.40 = 7,459.94/x
3. Step 3: Cross multiply
   12,766.15x = 17,619.40 × 7,459.94
4. Step 4: Simplify right side
   12,766.15x = 131,439,629.54
5. Step 5: Solve for x
   x = 131,439,629.54/12,766.15
6. Step 6: Final answer
   x = 10,295.95