Finding the Fourth Proportional to 10,427.34, 14,389.74 and 5,711.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.34 : 14,389.74 = 5,711.79 : x
2. Step 2: Convert to fraction form
   10,427.34/14,389.74 = 5,711.79/x
3. Step 3: Cross multiply
   10,427.34x = 14,389.74 × 5,711.79
4. Step 4: Simplify right side
   10,427.34x = 82,191,227.00
5. Step 5: Solve for x
   x = 82,191,227.00/10,427.34
6. Step 6: Final answer
   x = 7,882.28