Finding the Fourth Proportional to 11,018.18, 16,525.16 and 3,118.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,018.18 : 16,525.16 = 3,118.79 : x
2. Step 2: Convert to fraction form
   11,018.18/16,525.16 = 3,118.79/x
3. Step 3: Cross multiply
   11,018.18x = 16,525.16 × 3,118.79
4. Step 4: Simplify right side
   11,018.18x = 51,538,405.54
5. Step 5: Solve for x
   x = 51,538,405.54/11,018.18
6. Step 6: Final answer
   x = 4,677.58