Finding the Fourth Proportional to 3,745.42, 5,580.74 and 3,577.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,745.42 : 5,580.74 = 3,577.74 : x
2. Step 2: Convert to fraction form
   3,745.42/5,580.74 = 3,577.74/x
3. Step 3: Cross multiply
   3,745.42x = 5,580.74 × 3,577.74
4. Step 4: Simplify right side
   3,745.42x = 19,966,436.73
5. Step 5: Solve for x
   x = 19,966,436.73/3,745.42
6. Step 6: Final answer
   x = 5,330.89