Finding the Fourth Proportional to 13,255.27, 19,882.69 and 3,394.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,255.27 : 19,882.69 = 3,394.47 : x
2. Step 2: Convert to fraction form
   13,255.27/19,882.69 = 3,394.47/x
3. Step 3: Cross multiply
   13,255.27x = 19,882.69 × 3,394.47
4. Step 4: Simplify right side
   13,255.27x = 67,491,194.72
5. Step 5: Solve for x
   x = 67,491,194.72/13,255.27
6. Step 6: Final answer
   x = 5,091.65