Finding the Fourth Proportional to 5,433.78, 7,499.34 and 3,075.92

Step by Step Solution

1. Step 1: Write the proportion equation
   5,433.78 : 7,499.34 = 3,075.92 : x
2. Step 2: Convert to fraction form
   5,433.78/7,499.34 = 3,075.92/x
3. Step 3: Cross multiply
   5,433.78x = 7,499.34 × 3,075.92
4. Step 4: Simplify right side
   5,433.78x = 23,067,369.89
5. Step 5: Solve for x
   x = 23,067,369.89/5,433.78
6. Step 6: Final answer
   x = 4,245.18