Finding the Fourth Proportional to 5,579.82, 7,698.22 and 3,903.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,579.82 : 7,698.22 = 3,903.12 : x
2. Step 2: Convert to fraction form
   5,579.82/7,698.22 = 3,903.12/x
3. Step 3: Cross multiply
   5,579.82x = 7,698.22 × 3,903.12
4. Step 4: Simplify right side
   5,579.82x = 30,047,076.45
5. Step 5: Solve for x
   x = 30,047,076.45/5,579.82
6. Step 6: Final answer
   x = 5,384.95