Finding the Fourth Proportional to 5,096.90, 7,034.22 and 2,858.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,096.90 : 7,034.22 = 2,858.78 : x
2. Step 2: Convert to fraction form
   5,096.90/7,034.22 = 2,858.78/x
3. Step 3: Cross multiply
   5,096.90x = 7,034.22 × 2,858.78
4. Step 4: Simplify right side
   5,096.90x = 20,109,287.45
5. Step 5: Solve for x
   x = 20,109,287.45/5,096.90
6. Step 6: Final answer
   x = 3,945.40