Finding the Fourth Proportional to 3,551.24, 5,313.98 and 3,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,551.24 : 5,313.98 = 3,090.72 : x
2. Step 2: Convert to fraction form
   3,551.24/5,313.98 = 3,090.72/x
3. Step 3: Cross multiply
   3,551.24x = 5,313.98 × 3,090.72
4. Step 4: Simplify right side
   3,551.24x = 16,424,024.27
5. Step 5: Solve for x
   x = 16,424,024.27/3,551.24
6. Step 6: Final answer
   x = 4,624.87