Finding the Fourth Proportional to 144,315.61, 199,155.85 and 80,653.41

Step by Step Solution

1. Step 1: Write the proportion equation
   144,315.61 : 199,155.85 = 80,653.41 : x
2. Step 2: Convert to fraction form
   144,315.61/199,155.85 = 80,653.41/x
3. Step 3: Cross multiply
   144,315.61x = 199,155.85 × 80,653.41
4. Step 4: Simplify right side
   144,315.61x = 16,062,598,222.32
5. Step 5: Solve for x
   x = 16,062,598,222.32/144,315.61
6. Step 6: Final answer
   x = 111,301.88