Finding the Fourth Proportional to 8,711.34, 12,020.85 and 5,126.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,711.34 : 12,020.85 = 5,126.82 : x
2. Step 2: Convert to fraction form
   8,711.34/12,020.85 = 5,126.82/x
3. Step 3: Cross multiply
   8,711.34x = 12,020.85 × 5,126.82
4. Step 4: Simplify right side
   8,711.34x = 61,628,734.20
5. Step 5: Solve for x
   x = 61,628,734.20/8,711.34
6. Step 6: Final answer
   x = 7,074.54