Finding the Fourth Proportional to 12,608.36, 18,915.57 and 3,842.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,608.36 : 18,915.57 = 3,842.73 : x
2. Step 2: Convert to fraction form
   12,608.36/18,915.57 = 3,842.73/x
3. Step 3: Cross multiply
   12,608.36x = 18,915.57 × 3,842.73
4. Step 4: Simplify right side
   12,608.36x = 72,687,428.31
5. Step 5: Solve for x
   x = 72,687,428.31/12,608.36
6. Step 6: Final answer
   x = 5,765.02