Finding the Fourth Proportional to 12,308.53, 18,460.77 and 3,994.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308.53 : 18,460.77 = 3,994.49 : x
2. Step 2: Convert to fraction form
   12,308.53/18,460.77 = 3,994.49/x
3. Step 3: Cross multiply
   12,308.53x = 18,460.77 × 3,994.49
4. Step 4: Simplify right side
   12,308.53x = 73,741,361.16
5. Step 5: Solve for x
   x = 73,741,361.16/12,308.53
6. Step 6: Final answer
   x = 5,991.08