Finding the Fourth Proportional to 13,113.22, 19,672.71 and 3,879.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,113.22 : 19,672.71 = 3,879.94 : x
2. Step 2: Convert to fraction form
   13,113.22/19,672.71 = 3,879.94/x
3. Step 3: Cross multiply
   13,113.22x = 19,672.71 × 3,879.94
4. Step 4: Simplify right side
   13,113.22x = 76,328,934.44
5. Step 5: Solve for x
   x = 76,328,934.44/13,113.22
6. Step 6: Final answer
   x = 5,820.76