Finding the Fourth Proportional to 12,608.71, 18,915.87 and 3,844.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,608.71 : 18,915.87 = 3,844.30 : x
2. Step 2: Convert to fraction form
   12,608.71/18,915.87 = 3,844.30/x
3. Step 3: Cross multiply
   12,608.71x = 18,915.87 × 3,844.30
4. Step 4: Simplify right side
   12,608.71x = 72,718,279.04
5. Step 5: Solve for x
   x = 72,718,279.04/12,608.71
6. Step 6: Final answer
   x = 5,767.31