Finding the Fourth Proportional to 514,139.43, 771,200.89 and 140,162.43

Step by Step Solution

1. Step 1: Write the proportion equation
   514,139.43 : 771,200.89 = 140,162.43 : x
2. Step 2: Convert to fraction form
   514,139.43/771,200.89 = 140,162.43/x
3. Step 3: Cross multiply
   514,139.43x = 771,200.89 × 140,162.43
4. Step 4: Simplify right side
   514,139.43x = 108,093,390,760.56
5. Step 5: Solve for x
   x = 108,093,390,760.56/514,139.43
6. Step 6: Final answer
   x = 210,241.39