Finding the Fourth Proportional to 5,554.28, 8,320.50 and 3,674.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,554.28 : 8,320.50 = 3,674.42 : x
2. Step 2: Convert to fraction form
   5,554.28/8,320.50 = 3,674.42/x
3. Step 3: Cross multiply
   5,554.28x = 8,320.50 × 3,674.42
4. Step 4: Simplify right side
   5,554.28x = 30,573,011.61
5. Step 5: Solve for x
   x = 30,573,011.61/5,554.28
6. Step 6: Final answer
   x = 5,504.41