Finding the Fourth Proportional to 10,427.13, 14,389.43 and 5,711.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.13 : 14,389.43 = 5,711.42 : x
2. Step 2: Convert to fraction form
   10,427.13/14,389.43 = 5,711.42/x
3. Step 3: Cross multiply
   10,427.13x = 14,389.43 × 5,711.42
4. Step 4: Simplify right side
   10,427.13x = 82,184,078.29
5. Step 5: Solve for x
   x = 82,184,078.29/10,427.13
6. Step 6: Final answer
   x = 7,881.75