Finding the Fourth Proportional to 10,018.89, 13,826.31 and 5,542.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018.89 : 13,826.31 = 5,542.73 : x
2. Step 2: Convert to fraction form
   10,018.89/13,826.31 = 5,542.73/x
3. Step 3: Cross multiply
   10,018.89x = 13,826.31 × 5,542.73
4. Step 4: Simplify right side
   10,018.89x = 76,635,434.09
5. Step 5: Solve for x
   x = 76,635,434.09/10,018.89
6. Step 6: Final answer
   x = 7,649.09