Finding the Fourth Proportional to 131,111.37, 180,778.94 and 89,738.33

Step by Step Solution

1. Step 1: Write the proportion equation
   131,111.37 : 180,778.94 = 89,738.33 : x
2. Step 2: Convert to fraction form
   131,111.37/180,778.94 = 89,738.33/x
3. Step 3: Cross multiply
   131,111.37x = 180,778.94 × 89,738.33
4. Step 4: Simplify right side
   131,111.37x = 16,222,798,822.18
5. Step 5: Solve for x
   x = 16,222,798,822.18/131,111.37
6. Step 6: Final answer
   x = 123,732.97