Finding the Fourth Proportional to 5,469.30, 7,547.67 and 3,111.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,469.30 : 7,547.67 = 3,111.48 : x
2. Step 2: Convert to fraction form
   5,469.30/7,547.67 = 3,111.48/x
3. Step 3: Cross multiply
   5,469.30x = 7,547.67 × 3,111.48
4. Step 4: Simplify right side
   5,469.30x = 23,484,424.25
5. Step 5: Solve for x
   x = 23,484,424.25/5,469.30
6. Step 6: Final answer
   x = 4,293.86