Finding the Fourth Proportional to 4,978.38, 7,469.47 and 2,203.12

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.38 : 7,469.47 = 2,203.12 : x
2. Step 2: Convert to fraction form
   4,978.38/7,469.47 = 2,203.12/x
3. Step 3: Cross multiply
   4,978.38x = 7,469.47 × 2,203.12
4. Step 4: Simplify right side
   4,978.38x = 16,456,096.43
5. Step 5: Solve for x
   x = 16,456,096.43/4,978.38
6. Step 6: Final answer
   x = 3,305.51