Finding the Fourth Proportional to 140,665.51, 194,134 and 80,251.05

Step by Step Solution

1. Step 1: Write the proportion equation
   140,665.51 : 194,134 = 80,251.05 : x
2. Step 2: Convert to fraction form
   140,665.51/194,134 = 80,251.05/x
3. Step 3: Cross multiply
   140,665.51x = 194,134 × 80,251.05
4. Step 4: Simplify right side
   140,665.51x = 15,579,457,340.70
5. Step 5: Solve for x
   x = 15,579,457,340.70/140,665.51
6. Step 6: Final answer
   x = 110,755.35