Finding the Fourth Proportional to 7,128.06, 10,696.68 and 3,843.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,128.06 : 10,696.68 = 3,843.43 : x
2. Step 2: Convert to fraction form
   7,128.06/10,696.68 = 3,843.43/x
3. Step 3: Cross multiply
   7,128.06x = 10,696.68 × 3,843.43
4. Step 4: Simplify right side
   7,128.06x = 41,111,940.81
5. Step 5: Solve for x
   x = 41,111,940.81/7,128.06
6. Step 6: Final answer
   x = 5,767.62