Finding the Fourth Proportional to 80,145.56, 120,229.28 and 33,387.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,145.56 : 120,229.28 = 33,387.50 : x
2. Step 2: Convert to fraction form
   80,145.56/120,229.28 = 33,387.50/x
3. Step 3: Cross multiply
   80,145.56x = 120,229.28 × 33,387.50
4. Step 4: Simplify right side
   80,145.56x = 4,014,155,086
5. Step 5: Solve for x
   x = 4,014,155,086/80,145.56
6. Step 6: Final answer
   x = 50,085.81