Finding the Fourth Proportional to 5,624.40, 8,429.76 and 3,981.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,624.40 : 8,429.76 = 3,981.42 : x
2. Step 2: Convert to fraction form
   5,624.40/8,429.76 = 3,981.42/x
3. Step 3: Cross multiply
   5,624.40x = 8,429.76 × 3,981.42
4. Step 4: Simplify right side
   5,624.40x = 33,562,415.06
5. Step 5: Solve for x
   x = 33,562,415.06/5,624.40
6. Step 6: Final answer
   x = 5,967.29