Finding the Fourth Proportional to 5,476.47, 7,557.06 and 3,118.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,476.47 : 7,557.06 = 3,118.15 : x
2. Step 2: Convert to fraction form
   5,476.47/7,557.06 = 3,118.15/x
3. Step 3: Cross multiply
   5,476.47x = 7,557.06 × 3,118.15
4. Step 4: Simplify right side
   5,476.47x = 23,564,046.64
5. Step 5: Solve for x
   x = 23,564,046.64/5,476.47
6. Step 6: Final answer
   x = 4,302.78