Finding the Fourth Proportional to 80,616.67, 111,261.50 and 48,786.10

Step by Step Solution

1. Step 1: Write the proportion equation
   80,616.67 : 111,261.50 = 48,786.10 : x
2. Step 2: Convert to fraction form
   80,616.67/111,261.50 = 48,786.10/x
3. Step 3: Cross multiply
   80,616.67x = 111,261.50 × 48,786.10
4. Step 4: Simplify right side
   80,616.67x = 5,428,014,326.01
5. Step 5: Solve for x
   x = 5,428,014,326.01/80,616.67
6. Step 6: Final answer
   x = 67,331.17