Finding the Fourth Proportional to 13,456.86, 20,185.34 and 4,096.95

Step by Step Solution

1. Step 1: Write the proportion equation
   13,456.86 : 20,185.34 = 4,096.95 : x
2. Step 2: Convert to fraction form
   13,456.86/20,185.34 = 4,096.95/x
3. Step 3: Cross multiply
   13,456.86x = 20,185.34 × 4,096.95
4. Step 4: Simplify right side
   13,456.86x = 82,698,308.23
5. Step 5: Solve for x
   x = 82,698,308.23/13,456.86
6. Step 6: Final answer
   x = 6,145.44