Finding the Fourth Proportional to 111,391.94, 153,729.01 and 63,644.27

Step by Step Solution

1. Step 1: Write the proportion equation
   111,391.94 : 153,729.01 = 63,644.27 : x
2. Step 2: Convert to fraction form
   111,391.94/153,729.01 = 63,644.27/x
3. Step 3: Cross multiply
   111,391.94x = 153,729.01 × 63,644.27
4. Step 4: Simplify right side
   111,391.94x = 9,783,970,619.27
5. Step 5: Solve for x
   x = 9,783,970,619.27/111,391.94
6. Step 6: Final answer
   x = 87,833.74