Finding the Fourth Proportional to 12,159.48, 18,239.34 and 3,839.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,159.48 : 18,239.34 = 3,839.34 : x
2. Step 2: Convert to fraction form
   12,159.48/18,239.34 = 3,839.34/x
3. Step 3: Cross multiply
   12,159.48x = 18,239.34 × 3,839.34
4. Step 4: Simplify right side
   12,159.48x = 70,027,027.64
5. Step 5: Solve for x
   x = 70,027,027.64/12,159.48
6. Step 6: Final answer
   x = 5,759.05