Finding the Fourth Proportional to 4,085.47, 6,128.89 and 3,207.94

Step by Step Solution

1. Step 1: Write the proportion equation
   4,085.47 : 6,128.89 = 3,207.94 : x
2. Step 2: Convert to fraction form
   4,085.47/6,128.89 = 3,207.94/x
3. Step 3: Cross multiply
   4,085.47x = 6,128.89 × 3,207.94
4. Step 4: Simplify right side
   4,085.47x = 19,661,097.07
5. Step 5: Solve for x
   x = 19,661,097.07/4,085.47
6. Step 6: Final answer
   x = 4,812.44