Finding the Fourth Proportional to 10,427.75, 14,390.43 and 5,711.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.75 : 14,390.43 = 5,711.93 : x
2. Step 2: Convert to fraction form
   10,427.75/14,390.43 = 5,711.93/x
3. Step 3: Cross multiply
   10,427.75x = 14,390.43 × 5,711.93
4. Step 4: Simplify right side
   10,427.75x = 82,197,128.83
5. Step 5: Solve for x
   x = 82,197,128.83/10,427.75
6. Step 6: Final answer
   x = 7,882.54