Finding the Fourth Proportional to 5,547.78, 7,650.72 and 3,556.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,547.78 : 7,650.72 = 3,556.80 : x
2. Step 2: Convert to fraction form
   5,547.78/7,650.72 = 3,556.80/x
3. Step 3: Cross multiply
   5,547.78x = 7,650.72 × 3,556.80
4. Step 4: Simplify right side
   5,547.78x = 27,212,080.90
5. Step 5: Solve for x
   x = 27,212,080.90/5,547.78
6. Step 6: Final answer
   x = 4,905.04