Finding the Fourth Proportional to 142,053.27, 213,024.24 and 53,258.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142,053.27 : 213,024.24 = 53,258.37 : x
2. Step 2: Convert to fraction form
   142,053.27/213,024.24 = 53,258.37/x
3. Step 3: Cross multiply
   142,053.27x = 213,024.24 × 53,258.37
4. Step 4: Simplify right side
   142,053.27x = 11,345,323,792.89
5. Step 5: Solve for x
   x = 11,345,323,792.89/142,053.27
6. Step 6: Final answer
   x = 79,866.69