Finding the Fourth Proportional to 8,429.72, 12,648.63 and 4,533.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.72 : 12,648.63 = 4,533.62 : x
2. Step 2: Convert to fraction form
   8,429.72/12,648.63 = 4,533.62/x
3. Step 3: Cross multiply
   8,429.72x = 12,648.63 × 4,533.62
4. Step 4: Simplify right side
   8,429.72x = 57,344,081.94
5. Step 5: Solve for x
   x = 57,344,081.94/8,429.72
6. Step 6: Final answer
   x = 6,802.61