Finding the Fourth Proportional to 5,648.10, 7,790.49 and 3,973.02

Step by Step Solution

1. Step 1: Write the proportion equation
   5,648.10 : 7,790.49 = 3,973.02 : x
2. Step 2: Convert to fraction form
   5,648.10/7,790.49 = 3,973.02/x
3. Step 3: Cross multiply
   5,648.10x = 7,790.49 × 3,973.02
4. Step 4: Simplify right side
   5,648.10x = 30,951,772.58
5. Step 5: Solve for x
   x = 30,951,772.58/5,648.10
6. Step 6: Final answer
   x = 5,480.03