Finding the Fourth Proportional to 3,756.62, 5,603.17 and 3,539.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,756.62 : 5,603.17 = 3,539.81 : x
2. Step 2: Convert to fraction form
   3,756.62/5,603.17 = 3,539.81/x
3. Step 3: Cross multiply
   3,756.62x = 5,603.17 × 3,539.81
4. Step 4: Simplify right side
   3,756.62x = 19,834,157.20
5. Step 5: Solve for x
   x = 19,834,157.20/3,756.62
6. Step 6: Final answer
   x = 5,279.79