Finding the Fourth Proportional to 5,574.50, 7,692.81 and 3,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,574.50 : 7,692.81 = 3,090.50 : x
2. Step 2: Convert to fraction form
   5,574.50/7,692.81 = 3,090.50/x
3. Step 3: Cross multiply
   5,574.50x = 7,692.81 × 3,090.50
4. Step 4: Simplify right side
   5,574.50x = 23,774,629.31
5. Step 5: Solve for x
   x = 23,774,629.31/5,574.50
6. Step 6: Final answer
   x = 4,264.89