Finding the Fourth Proportional to 111,849.84, 154,383.12 and 65,949.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,849.84 : 154,383.12 = 65,949.60 : x
2. Step 2: Convert to fraction form
   111,849.84/154,383.12 = 65,949.60/x
3. Step 3: Cross multiply
   111,849.84x = 154,383.12 × 65,949.60
4. Step 4: Simplify right side
   111,849.84x = 10,181,505,010.75
5. Step 5: Solve for x
   x = 10,181,505,010.75/111,849.84
6. Step 6: Final answer
   x = 91,028.34