Finding the Fourth Proportional to 140,507.87, 210,761.28 and 50,550.38

Step by Step Solution

1. Step 1: Write the proportion equation
   140,507.87 : 210,761.28 = 50,550.38 : x
2. Step 2: Convert to fraction form
   140,507.87/210,761.28 = 50,550.38/x
3. Step 3: Cross multiply
   140,507.87x = 210,761.28 × 50,550.38
4. Step 4: Simplify right side
   140,507.87x = 10,654,061,739.48
5. Step 5: Solve for x
   x = 10,654,061,739.48/140,507.87
6. Step 6: Final answer
   x = 75,825.38