Finding the Fourth Proportional to 11,855.56, 17,784.53 and 3,422.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,855.56 : 17,784.53 = 3,422.27 : x
2. Step 2: Convert to fraction form
   11,855.56/17,784.53 = 3,422.27/x
3. Step 3: Cross multiply
   11,855.56x = 17,784.53 × 3,422.27
4. Step 4: Simplify right side
   11,855.56x = 60,863,494.04
5. Step 5: Solve for x
   x = 60,863,494.04/11,855.56
6. Step 6: Final answer
   x = 5,133.75