Finding the Fourth Proportional to 80,485.22, 120,728.42 and 30,551.86

Step by Step Solution

1. Step 1: Write the proportion equation
   80,485.22 : 120,728.42 = 30,551.86 : x
2. Step 2: Convert to fraction form
   80,485.22/120,728.42 = 30,551.86/x
3. Step 3: Cross multiply
   80,485.22x = 120,728.42 × 30,551.86
4. Step 4: Simplify right side
   80,485.22x = 3,688,477,785.86
5. Step 5: Solve for x
   x = 3,688,477,785.86/80,485.22
6. Step 6: Final answer
   x = 45,828.01