Finding the Fourth Proportional to 142,308.56, 213,462.82 and 53,581.96

Step by Step Solution

1. Step 1: Write the proportion equation
   142,308.56 : 213,462.82 = 53,581.96 : x
2. Step 2: Convert to fraction form
   142,308.56/213,462.82 = 53,581.96/x
3. Step 3: Cross multiply
   142,308.56x = 213,462.82 × 53,581.96
4. Step 4: Simplify right side
   142,308.56x = 11,437,756,282.73
5. Step 5: Solve for x
   x = 11,437,756,282.73/142,308.56
6. Step 6: Final answer
   x = 80,372.93