Finding the Fourth Proportional to 140,409, 210,650.38 and 50,460.79

Step by Step Solution

1. Step 1: Write the proportion equation
   140,409 : 210,650.38 = 50,460.79 : x
2. Step 2: Convert to fraction form
   140,409/210,650.38 = 50,460.79/x
3. Step 3: Cross multiply
   140,409x = 210,650.38 × 50,460.79
4. Step 4: Simplify right side
   140,409x = 10,629,584,588.60
5. Step 5: Solve for x
   x = 10,629,584,588.60/140,409
6. Step 6: Final answer
   x = 75,704.44