Finding the Fourth Proportional to 142,621,684.56, 213,870,229.08 and 50,474,796.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,621,684.56 : 213,870,229.08 = 50,474,796.72 : x
2. Step 2: Convert to fraction form
   142,621,684.56/213,870,229.08 = 50,474,796.72/x
3. Step 3: Cross multiply
   142,621,684.56x = 213,870,229.08 × 50,474,796.72
4. Step 4: Simplify right side
   142,621,684.56x = 10,795,056,337,272,834
5. Step 5: Solve for x
   x = 10,795,056,337,272,834/142,621,684.56
6. Step 6: Final answer
   x = 75,690,147.47