Finding the Fourth Proportional to 111,568.37, 153,991.69 and 68,558.28

Step by Step Solution

1. Step 1: Write the proportion equation
   111,568.37 : 153,991.69 = 68,558.28 : x
2. Step 2: Convert to fraction form
   111,568.37/153,991.69 = 68,558.28/x
3. Step 3: Cross multiply
   111,568.37x = 153,991.69 × 68,558.28
4. Step 4: Simplify right side
   111,568.37x = 10,557,405,400.69
5. Step 5: Solve for x
   x = 10,557,405,400.69/111,568.37
6. Step 6: Final answer
   x = 94,627.23