Finding the Fourth Proportional to 5,143.38, 7,097.83 and 2,785.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,143.38 : 7,097.83 = 2,785.50 : x
2. Step 2: Convert to fraction form
   5,143.38/7,097.83 = 2,785.50/x
3. Step 3: Cross multiply
   5,143.38x = 7,097.83 × 2,785.50
4. Step 4: Simplify right side
   5,143.38x = 19,771,005.47
5. Step 5: Solve for x
   x = 19,771,005.47/5,143.38
6. Step 6: Final answer
   x = 3,843.97