Finding the Fourth Proportional to 10,020.78, 13,827.96 and 5,544.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,020.78 : 13,827.96 = 5,544.18 : x
2. Step 2: Convert to fraction form
   10,020.78/13,827.96 = 5,544.18/x
3. Step 3: Cross multiply
   10,020.78x = 13,827.96 × 5,544.18
4. Step 4: Simplify right side
   10,020.78x = 76,664,699.27
5. Step 5: Solve for x
   x = 76,664,699.27/10,020.78
6. Step 6: Final answer
   x = 7,650.57