Finding the Fourth Proportional to 8,922.59, 12,311.46 and 5,730.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,922.59 : 12,311.46 = 5,730.94 : x
2. Step 2: Convert to fraction form
   8,922.59/12,311.46 = 5,730.94/x
3. Step 3: Cross multiply
   8,922.59x = 12,311.46 × 5,730.94
4. Step 4: Simplify right side
   8,922.59x = 70,556,238.57
5. Step 5: Solve for x
   x = 70,556,238.57/8,922.59
6. Step 6: Final answer
   x = 7,907.60