Finding the Fourth Proportional to 8,771.34, 12,106.89 and 5,414.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,771.34 : 12,106.89 = 5,414.70 : x
2. Step 2: Convert to fraction form
   8,771.34/12,106.89 = 5,414.70/x
3. Step 3: Cross multiply
   8,771.34x = 12,106.89 × 5,414.70
4. Step 4: Simplify right side
   8,771.34x = 65,555,177.28
5. Step 5: Solve for x
   x = 65,555,177.28/8,771.34
6. Step 6: Final answer
   x = 7,473.79