Finding the Fourth Proportional to 3,561.17, 5,364.23 and 3,290.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.17 : 5,364.23 = 3,290.52 : x
2. Step 2: Convert to fraction form
   3,561.17/5,364.23 = 3,290.52/x
3. Step 3: Cross multiply
   3,561.17x = 5,364.23 × 3,290.52
4. Step 4: Simplify right side
   3,561.17x = 17,651,109.76
5. Step 5: Solve for x
   x = 17,651,109.76/3,561.17
6. Step 6: Final answer
   x = 4,956.55