Finding the Fourth Proportional to 12,606.89, 18,913.16 and 3,842.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,606.89 : 18,913.16 = 3,842.49 : x
2. Step 2: Convert to fraction form
   12,606.89/18,913.16 = 3,842.49/x
3. Step 3: Cross multiply
   12,606.89x = 18,913.16 × 3,842.49
4. Step 4: Simplify right side
   12,606.89x = 72,673,608.96
5. Step 5: Solve for x
   x = 72,673,608.96/12,606.89
6. Step 6: Final answer
   x = 5,764.59