Finding the Fourth Proportional to 80,769.60, 121,111.20 and 33,969.60

Step by Step Solution

1. Step 1: Write the proportion equation
   80,769.60 : 121,111.20 = 33,969.60 : x
2. Step 2: Convert to fraction form
   80,769.60/121,111.20 = 33,969.60/x
3. Step 3: Cross multiply
   80,769.60x = 121,111.20 × 33,969.60
4. Step 4: Simplify right side
   80,769.60x = 4,114,099,019.52
5. Step 5: Solve for x
   x = 4,114,099,019.52/80,769.60
6. Step 6: Final answer
   x = 50,936.23