Finding the Fourth Proportional to 8,740.73, 13,116.42 and 3,474.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,740.73 : 13,116.42 = 3,474.78 : x
2. Step 2: Convert to fraction form
   8,740.73/13,116.42 = 3,474.78/x
3. Step 3: Cross multiply
   8,740.73x = 13,116.42 × 3,474.78
4. Step 4: Simplify right side
   8,740.73x = 45,576,673.89
5. Step 5: Solve for x
   x = 45,576,673.89/8,740.73
6. Step 6: Final answer
   x = 5,214.29