Finding the Fourth Proportional to 5,673.33, 7,823.61 and 5,345.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,673.33 : 7,823.61 = 5,345.28 : x
2. Step 2: Convert to fraction form
   5,673.33/7,823.61 = 5,345.28/x
3. Step 3: Cross multiply
   5,673.33x = 7,823.61 × 5,345.28
4. Step 4: Simplify right side
   5,673.33x = 41,819,386.06
5. Step 5: Solve for x
   x = 41,819,386.06/5,673.33
6. Step 6: Final answer
   x = 7,371.22