Finding the Fourth Proportional to 12,608.48, 18,914.88 and 3,843.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,608.48 : 18,914.88 = 3,843.20 : x
2. Step 2: Convert to fraction form
   12,608.48/18,914.88 = 3,843.20/x
3. Step 3: Cross multiply
   12,608.48x = 18,914.88 × 3,843.20
4. Step 4: Simplify right side
   12,608.48x = 72,693,666.82
5. Step 5: Solve for x
   x = 72,693,666.82/12,608.48
6. Step 6: Final answer
   x = 5,765.46