Finding the Fourth Proportional to 5,469.02, 7,547.18 and 3,111.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,469.02 : 7,547.18 = 3,111.15 : x
2. Step 2: Convert to fraction form
   5,469.02/7,547.18 = 3,111.15/x
3. Step 3: Cross multiply
   5,469.02x = 7,547.18 × 3,111.15
4. Step 4: Simplify right side
   5,469.02x = 23,480,393.50
5. Step 5: Solve for x
   x = 23,480,393.50/5,469.02
6. Step 6: Final answer
   x = 4,293.35