Finding the Fourth Proportional to 11,987.82, 17,981.70 and 3,222.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,987.82 : 17,981.70 = 3,222.73 : x
2. Step 2: Convert to fraction form
   11,987.82/17,981.70 = 3,222.73/x
3. Step 3: Cross multiply
   11,987.82x = 17,981.70 × 3,222.73
4. Step 4: Simplify right side
   11,987.82x = 57,950,164.04
5. Step 5: Solve for x
   x = 57,950,164.04/11,987.82
6. Step 6: Final answer
   x = 4,834.09