Finding the Fourth Proportional to 111,851.43, 154,357.61 and 63,456.63

Step by Step Solution

1. Step 1: Write the proportion equation
   111,851.43 : 154,357.61 = 63,456.63 : x
2. Step 2: Convert to fraction form
   111,851.43/154,357.61 = 63,456.63/x
3. Step 3: Cross multiply
   111,851.43x = 154,357.61 × 63,456.63
4. Step 4: Simplify right side
   111,851.43x = 9,795,013,745.45
5. Step 5: Solve for x
   x = 9,795,013,745.45/111,851.43
6. Step 6: Final answer
   x = 87,571.65