Finding the Fourth Proportional to 10,871.34, 16,308.72 and 4,297.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,871.34 : 16,308.72 = 4,297.56 : x
2. Step 2: Convert to fraction form
   10,871.34/16,308.72 = 4,297.56/x
3. Step 3: Cross multiply
   10,871.34x = 16,308.72 × 4,297.56
4. Step 4: Simplify right side
   10,871.34x = 70,087,702.72
5. Step 5: Solve for x
   x = 70,087,702.72/10,871.34
6. Step 6: Final answer
   x = 6,447.02