Finding the Fourth Proportional to 80,584.55, 120,929.31 and 30,665.09

Step by Step Solution

1. Step 1: Write the proportion equation
   80,584.55 : 120,929.31 = 30,665.09 : x
2. Step 2: Convert to fraction form
   80,584.55/120,929.31 = 30,665.09/x
3. Step 3: Cross multiply
   80,584.55x = 120,929.31 × 30,665.09
4. Step 4: Simplify right side
   80,584.55x = 3,708,307,570.14
5. Step 5: Solve for x
   x = 3,708,307,570.14/80,584.55
6. Step 6: Final answer
   x = 46,017.60