Finding the Fourth Proportional to 10,427.22, 14,389.56 and 5,711.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.22 : 14,389.56 = 5,711.67 : x
2. Step 2: Convert to fraction form
   10,427.22/14,389.56 = 5,711.67/x
3. Step 3: Cross multiply
   10,427.22x = 14,389.56 × 5,711.67
4. Step 4: Simplify right side
   10,427.22x = 82,188,418.17
5. Step 5: Solve for x
   x = 82,188,418.17/10,427.22
6. Step 6: Final answer
   x = 7,882.10