Finding the Fourth Proportional to 7,794.78, 10,756.92 and 5,530.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,794.78 : 10,756.92 = 5,530.10 : x
2. Step 2: Convert to fraction form
   7,794.78/10,756.92 = 5,530.10/x
3. Step 3: Cross multiply
   7,794.78x = 10,756.92 × 5,530.10
4. Step 4: Simplify right side
   7,794.78x = 59,486,789.51
5. Step 5: Solve for x
   x = 59,486,789.51/7,794.78
6. Step 6: Final answer
   x = 7,631.62