Finding the Fourth Proportional to 144,581.76, 199,522.62 and 80,931.78

Step by Step Solution

1. Step 1: Write the proportion equation
   144,581.76 : 199,522.62 = 80,931.78 : x
2. Step 2: Convert to fraction form
   144,581.76/199,522.62 = 80,931.78/x
3. Step 3: Cross multiply
   144,581.76x = 199,522.62 × 80,931.78
4. Step 4: Simplify right side
   144,581.76x = 16,147,720,786.86
5. Step 5: Solve for x
   x = 16,147,720,786.86/144,581.76
6. Step 6: Final answer
   x = 111,685.74