Finding the Fourth Proportional to 9,018.92, 13,523.52 and 3,171.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.92 : 13,523.52 = 3,171.12 : x
2. Step 2: Convert to fraction form
   9,018.92/13,523.52 = 3,171.12/x
3. Step 3: Cross multiply
   9,018.92x = 13,523.52 × 3,171.12
4. Step 4: Simplify right side
   9,018.92x = 42,884,704.74
5. Step 5: Solve for x
   x = 42,884,704.74/9,018.92
6. Step 6: Final answer
   x = 4,754.97