Finding the Fourth Proportional to 5,524.80, 8,328.57 and 5,158.14

Step by Step Solution

1. Step 1: Write the proportion equation
   5,524.80 : 8,328.57 = 5,158.14 : x
2. Step 2: Convert to fraction form
   5,524.80/8,328.57 = 5,158.14/x
3. Step 3: Cross multiply
   5,524.80x = 8,328.57 × 5,158.14
4. Step 4: Simplify right side
   5,524.80x = 42,959,930.06
5. Step 5: Solve for x
   x = 42,959,930.06/5,524.80
6. Step 6: Final answer
   x = 7,775.83