Finding the Fourth Proportional to 10,427.83, 14,390.39 and 5,712.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.83 : 14,390.39 = 5,712.10 : x
2. Step 2: Convert to fraction form
   10,427.83/14,390.39 = 5,712.10/x
3. Step 3: Cross multiply
   10,427.83x = 14,390.39 × 5,712.10
4. Step 4: Simplify right side
   10,427.83x = 82,199,325.02
5. Step 5: Solve for x
   x = 82,199,325.02/10,427.83
6. Step 6: Final answer
   x = 7,882.69