Finding the Fourth Proportional to 8,361.56, 12,523.83 and 3,416.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,361.56 : 12,523.83 = 3,416.20 : x
2. Step 2: Convert to fraction form
   8,361.56/12,523.83 = 3,416.20/x
3. Step 3: Cross multiply
   8,361.56x = 12,523.83 × 3,416.20
4. Step 4: Simplify right side
   8,361.56x = 42,783,845.43
5. Step 5: Solve for x
   x = 42,783,845.43/8,361.56
6. Step 6: Final answer
   x = 5,116.73