Finding the Fourth Proportional to 142,621,685.56, 213,870,230.58 and 50,474,797.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,621,685.56 : 213,870,230.58 = 50,474,797.72 : x
2. Step 2: Convert to fraction form
   142,621,685.56/213,870,230.58 = 50,474,797.72/x
3. Step 3: Cross multiply
   142,621,685.56x = 213,870,230.58 × 50,474,797.72
4. Step 4: Simplify right side
   142,621,685.56x = 10,795,056,626,855,258
5. Step 5: Solve for x
   x = 10,795,056,626,855,258/142,621,685.56
6. Step 6: Final answer
   x = 75,690,148.97