Finding the Fourth Proportional to 8,288.52, 12,429.54 and 3,091.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,288.52 : 12,429.54 = 3,091.56 : x
2. Step 2: Convert to fraction form
   8,288.52/12,429.54 = 3,091.56/x
3. Step 3: Cross multiply
   8,288.52x = 12,429.54 × 3,091.56
4. Step 4: Simplify right side
   8,288.52x = 38,426,668.68
5. Step 5: Solve for x
   x = 38,426,668.68/8,288.52
6. Step 6: Final answer
   x = 4,636.13