Finding the Fourth Proportional to 10,018.57, 13,825.67 and 5,542.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018.57 : 13,825.67 = 5,542.48 : x
2. Step 2: Convert to fraction form
   10,018.57/13,825.67 = 5,542.48/x
3. Step 3: Cross multiply
   10,018.57x = 13,825.67 × 5,542.48
4. Step 4: Simplify right side
   10,018.57x = 76,628,465.82
5. Step 5: Solve for x
   x = 76,628,465.82/10,018.57
6. Step 6: Final answer
   x = 7,648.65