Finding the Fourth Proportional to 80,113.91, 120,171.15 and 30,180.60

Step by Step Solution

1. Step 1: Write the proportion equation
   80,113.91 : 120,171.15 = 30,180.60 : x
2. Step 2: Convert to fraction form
   80,113.91/120,171.15 = 30,180.60/x
3. Step 3: Cross multiply
   80,113.91x = 120,171.15 × 30,180.60
4. Step 4: Simplify right side
   80,113.91x = 3,626,837,409.69
5. Step 5: Solve for x
   x = 3,626,837,409.69/80,113.91
6. Step 6: Final answer
   x = 45,271.01