Finding the Fourth Proportional to 8,364.24, 12,533.40 and 3,429.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,364.24 : 12,533.40 = 3,429.72 : x
2. Step 2: Convert to fraction form
   8,364.24/12,533.40 = 3,429.72/x
3. Step 3: Cross multiply
   8,364.24x = 12,533.40 × 3,429.72
4. Step 4: Simplify right side
   8,364.24x = 42,986,052.65
5. Step 5: Solve for x
   x = 42,986,052.65/8,364.24
6. Step 6: Final answer
   x = 5,139.27