Finding the Fourth Proportional to 10,454.76, 14,427.94 and 5,739.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,454.76 : 14,427.94 = 5,739.40 : x
2. Step 2: Convert to fraction form
   10,454.76/14,427.94 = 5,739.40/x
3. Step 3: Cross multiply
   10,454.76x = 14,427.94 × 5,739.40
4. Step 4: Simplify right side
   10,454.76x = 82,807,718.84
5. Step 5: Solve for x
   x = 82,807,718.84/10,454.76
6. Step 6: Final answer
   x = 7,920.58