Finding the Fourth Proportional to 13,182.05, 19,771.61 and 3,321.33

Step by Step Solution

1. Step 1: Write the proportion equation
   13,182.05 : 19,771.61 = 3,321.33 : x
2. Step 2: Convert to fraction form
   13,182.05/19,771.61 = 3,321.33/x
3. Step 3: Cross multiply
   13,182.05x = 19,771.61 × 3,321.33
4. Step 4: Simplify right side
   13,182.05x = 65,668,024.83
5. Step 5: Solve for x
   x = 65,668,024.83/13,182.05
6. Step 6: Final answer
   x = 4,981.63