Finding the Fourth Proportional to 5,468.67, 7,547.31 and 3,111.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,468.67 : 7,547.31 = 3,111.57 : x
2. Step 2: Convert to fraction form
   5,468.67/7,547.31 = 3,111.57/x
3. Step 3: Cross multiply
   5,468.67x = 7,547.31 × 3,111.57
4. Step 4: Simplify right side
   5,468.67x = 23,483,983.38
5. Step 5: Solve for x
   x = 23,483,983.38/5,468.67
6. Step 6: Final answer
   x = 4,294.28