Finding the Fourth Proportional to 142,406.06, 196,519.83 and 80,311.61

Step by Step Solution

1. Step 1: Write the proportion equation
   142,406.06 : 196,519.83 = 80,311.61 : x
2. Step 2: Convert to fraction form
   142,406.06/196,519.83 = 80,311.61/x
3. Step 3: Cross multiply
   142,406.06x = 196,519.83 × 80,311.61
4. Step 4: Simplify right side
   142,406.06x = 15,782,822,961.63
5. Step 5: Solve for x
   x = 15,782,822,961.63/142,406.06
6. Step 6: Final answer
   x = 110,829.72