Finding the Fourth Proportional to 11,018.76, 16,523.60 and 4,443.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,018.76 : 16,523.60 = 4,443.20 : x
2. Step 2: Convert to fraction form
   11,018.76/16,523.60 = 4,443.20/x
3. Step 3: Cross multiply
   11,018.76x = 16,523.60 × 4,443.20
4. Step 4: Simplify right side
   11,018.76x = 73,417,659.52
5. Step 5: Solve for x
   x = 73,417,659.52/11,018.76
6. Step 6: Final answer
   x = 6,662.97