Finding the Fourth Proportional to 10,427.94, 14,390.56 and 5,712.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.94 : 14,390.56 = 5,712.38 : x
2. Step 2: Convert to fraction form
   10,427.94/14,390.56 = 5,712.38/x
3. Step 3: Cross multiply
   10,427.94x = 14,390.56 × 5,712.38
4. Step 4: Simplify right side
   10,427.94x = 82,204,347.13
5. Step 5: Solve for x
   x = 82,204,347.13/10,427.94
6. Step 6: Final answer
   x = 7,883.09