Finding the Fourth Proportional to 9,018.28, 13,528.50 and 3,173.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.28 : 13,528.50 = 3,173.68 : x
2. Step 2: Convert to fraction form
   9,018.28/13,528.50 = 3,173.68/x
3. Step 3: Cross multiply
   9,018.28x = 13,528.50 × 3,173.68
4. Step 4: Simplify right side
   9,018.28x = 42,935,129.88
5. Step 5: Solve for x
   x = 42,935,129.88/9,018.28
6. Step 6: Final answer
   x = 4,760.90