Finding the Fourth Proportional to 3,611.79, 5,426.82 and 3,465.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,611.79 : 5,426.82 = 3,465.99 : x
2. Step 2: Convert to fraction form
   3,611.79/5,426.82 = 3,465.99/x
3. Step 3: Cross multiply
   3,611.79x = 5,426.82 × 3,465.99
4. Step 4: Simplify right side
   3,611.79x = 18,809,303.85
5. Step 5: Solve for x
   x = 18,809,303.85/3,611.79
6. Step 6: Final answer
   x = 5,207.75