Finding the Fourth Proportional to 111,567.37, 153,990.31 and 68,557.28

Step by Step Solution

1. Step 1: Write the proportion equation
   111,567.37 : 153,990.31 = 68,557.28 : x
2. Step 2: Convert to fraction form
   111,567.37/153,990.31 = 68,557.28/x
3. Step 3: Cross multiply
   111,567.37x = 153,990.31 × 68,557.28
4. Step 4: Simplify right side
   111,567.37x = 10,557,155,687.22
5. Step 5: Solve for x
   x = 10,557,155,687.22/111,567.37
6. Step 6: Final answer
   x = 94,625.84