Finding the Fourth Proportional to 80,816.82, 121,091.56 and 41,319.60

Step by Step Solution

1. Step 1: Write the proportion equation
   80,816.82 : 121,091.56 = 41,319.60 : x
2. Step 2: Convert to fraction form
   80,816.82/121,091.56 = 41,319.60/x
3. Step 3: Cross multiply
   80,816.82x = 121,091.56 × 41,319.60
4. Step 4: Simplify right side
   80,816.82x = 5,003,454,822.58
5. Step 5: Solve for x
   x = 5,003,454,822.58/80,816.82
6. Step 6: Final answer
   x = 61,911.06