Finding the Fourth Proportional to 3,611.16, 5,450.52 and 3,611.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,611.16 : 5,450.52 = 3,611.16 : x
2. Step 2: Convert to fraction form
   3,611.16/5,450.52 = 3,611.16/x
3. Step 3: Cross multiply
   3,611.16x = 5,450.52 × 3,611.16
4. Step 4: Simplify right side
   3,611.16x = 19,682,699.80
5. Step 5: Solve for x
   x = 19,682,699.80/3,611.16
6. Step 6: Final answer
   x = 5,450.52