Finding the Fourth Proportional to 3,677.58, 5,521.83 and 3,611.97

Step by Step Solution

1. Step 1: Write the proportion equation
   3,677.58 : 5,521.83 = 3,611.97 : x
2. Step 2: Convert to fraction form
   3,677.58/5,521.83 = 3,611.97/x
3. Step 3: Cross multiply
   3,677.58x = 5,521.83 × 3,611.97
4. Step 4: Simplify right side
   3,677.58x = 19,944,684.31
5. Step 5: Solve for x
   x = 19,944,684.31/3,677.58
6. Step 6: Final answer
   x = 5,423.32