Finding the Fourth Proportional to 10,454.92, 14,427.90 and 5,739.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,454.92 : 14,427.90 = 5,739.10 : x
2. Step 2: Convert to fraction form
   10,454.92/14,427.90 = 5,739.10/x
3. Step 3: Cross multiply
   10,454.92x = 14,427.90 × 5,739.10
4. Step 4: Simplify right side
   10,454.92x = 82,803,160.89
5. Step 5: Solve for x
   x = 82,803,160.89/10,454.92
6. Step 6: Final answer
   x = 7,920.02