Finding the Fourth Proportional to 140,399.01, 210,635.46 and 50,450.81

Step by Step Solution

1. Step 1: Write the proportion equation
   140,399.01 : 210,635.46 = 50,450.81 : x
2. Step 2: Convert to fraction form
   140,399.01/210,635.46 = 50,450.81/x
3. Step 3: Cross multiply
   140,399.01x = 210,635.46 × 50,450.81
4. Step 4: Simplify right side
   140,399.01x = 10,626,728,518.55
5. Step 5: Solve for x
   x = 10,626,728,518.55/140,399.01
6. Step 6: Final answer
   x = 75,689.48