Finding the Fourth Proportional to 12,055.50, 18,081.42 and 3,291.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,055.50 : 18,081.42 = 3,291.10 : x
2. Step 2: Convert to fraction form
   12,055.50/18,081.42 = 3,291.10/x
3. Step 3: Cross multiply
   12,055.50x = 18,081.42 × 3,291.10
4. Step 4: Simplify right side
   12,055.50x = 59,507,761.36
5. Step 5: Solve for x
   x = 59,507,761.36/12,055.50
6. Step 6: Final answer
   x = 4,936.15