Finding the Fourth Proportional to 18,820.06, 25,983.94 and 12,849.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,820.06 : 25,983.94 = 12,849.56 : x
2. Step 2: Convert to fraction form
   18,820.06/25,983.94 = 12,849.56/x
3. Step 3: Cross multiply
   18,820.06x = 25,983.94 × 12,849.56
4. Step 4: Simplify right side
   18,820.06x = 333,882,196.07
5. Step 5: Solve for x
   x = 333,882,196.07/18,820.06
6. Step 6: Final answer
   x = 17,740.76