Finding the Fourth Proportional to 12,307.53, 18,459.27 and 3,993.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,307.53 : 18,459.27 = 3,993.49 : x
2. Step 2: Convert to fraction form
   12,307.53/18,459.27 = 3,993.49/x
3. Step 3: Cross multiply
   12,307.53x = 18,459.27 × 3,993.49
4. Step 4: Simplify right side
   12,307.53x = 73,716,910.15
5. Step 5: Solve for x
   x = 73,716,910.15/12,307.53
6. Step 6: Final answer
   x = 5,989.58