Finding the Fourth Proportional to 5,515.59, 7,611.52 and 3,031.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,515.59 : 7,611.52 = 3,031.59 : x
2. Step 2: Convert to fraction form
   5,515.59/7,611.52 = 3,031.59/x
3. Step 3: Cross multiply
   5,515.59x = 7,611.52 × 3,031.59
4. Step 4: Simplify right side
   5,515.59x = 23,075,034.57
5. Step 5: Solve for x
   x = 23,075,034.57/5,515.59
6. Step 6: Final answer
   x = 4,183.60