Finding the Fourth Proportional to 12,159.72, 18,242.82 and 3,839.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,159.72 : 18,242.82 = 3,839.94 : x
2. Step 2: Convert to fraction form
   12,159.72/18,242.82 = 3,839.94/x
3. Step 3: Cross multiply
   12,159.72x = 18,242.82 × 3,839.94
4. Step 4: Simplify right side
   12,159.72x = 70,051,334.23
5. Step 5: Solve for x
   x = 70,051,334.23/12,159.72
6. Step 6: Final answer
   x = 5,760.93