Finding the Fourth Proportional to 7,674.54, 10,579.58 and 5,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,674.54 : 10,579.58 = 5,429.50 : x
2. Step 2: Convert to fraction form
   7,674.54/10,579.58 = 5,429.50/x
3. Step 3: Cross multiply
   7,674.54x = 10,579.58 × 5,429.50
4. Step 4: Simplify right side
   7,674.54x = 57,441,829.61
5. Step 5: Solve for x
   x = 57,441,829.61/7,674.54
6. Step 6: Final answer
   x = 7,484.73