Finding the Fourth Proportional to 12,608.61, 18,915.93 and 3,842.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,608.61 : 18,915.93 = 3,842.98 : x
2. Step 2: Convert to fraction form
   12,608.61/18,915.93 = 3,842.98/x
3. Step 3: Cross multiply
   12,608.61x = 18,915.93 × 3,842.98
4. Step 4: Simplify right side
   12,608.61x = 72,693,540.67
5. Step 5: Solve for x
   x = 72,693,540.67/12,608.61
6. Step 6: Final answer
   x = 5,765.39