Finding the Fourth Proportional to 5,776.18, 8,622.48 and 5,075.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,776.18 : 8,622.48 = 5,075.55 : x
2. Step 2: Convert to fraction form
   5,776.18/8,622.48 = 5,075.55/x
3. Step 3: Cross multiply
   5,776.18x = 8,622.48 × 5,075.55
4. Step 4: Simplify right side
   5,776.18x = 43,763,847.40
5. Step 5: Solve for x
   x = 43,763,847.40/5,776.18
6. Step 6: Final answer
   x = 7,576.61