Finding the Fourth Proportional to 144,258.86, 199,073.58 and 80,597.12

Step by Step Solution

1. Step 1: Write the proportion equation
   144,258.86 : 199,073.58 = 80,597.12 : x
2. Step 2: Convert to fraction form
   144,258.86/199,073.58 = 80,597.12/x
3. Step 3: Cross multiply
   144,258.86x = 199,073.58 × 80,597.12
4. Step 4: Simplify right side
   144,258.86x = 16,044,757,216.09
5. Step 5: Solve for x
   x = 16,044,757,216.09/144,258.86
6. Step 6: Final answer
   x = 111,221.99