Finding the Fourth Proportional to 5,405.93, 7,400.72 and 5,369.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,405.93 : 7,400.72 = 5,369.48 : x
2. Step 2: Convert to fraction form
   5,405.93/7,400.72 = 5,369.48/x
3. Step 3: Cross multiply
   5,405.93x = 7,400.72 × 5,369.48
4. Step 4: Simplify right side
   5,405.93x = 39,738,018.03
5. Step 5: Solve for x
   x = 39,738,018.03/5,405.93
6. Step 6: Final answer
   x = 7,350.82