Finding the Fourth Proportional to 5,112.21, 7,053.78 and 3,095.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,112.21 : 7,053.78 = 3,095.31 : x
2. Step 2: Convert to fraction form
   5,112.21/7,053.78 = 3,095.31/x
3. Step 3: Cross multiply
   5,112.21x = 7,053.78 × 3,095.31
4. Step 4: Simplify right side
   5,112.21x = 21,833,673.83
5. Step 5: Solve for x
   x = 21,833,673.83/5,112.21
6. Step 6: Final answer
   x = 4,270.88