Finding the Fourth Proportional to 10,455.82, 14,429.28 and 5,740.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,455.82 : 14,429.28 = 5,740.18 : x
2. Step 2: Convert to fraction form
   10,455.82/14,429.28 = 5,740.18/x
3. Step 3: Cross multiply
   10,455.82x = 14,429.28 × 5,740.18
4. Step 4: Simplify right side
   10,455.82x = 82,826,664.47
5. Step 5: Solve for x
   x = 82,826,664.47/10,455.82
6. Step 6: Final answer
   x = 7,921.58