Finding the Fourth Proportional to 142,412.38, 213,665.33 and 58,243.33

Step by Step Solution

1. Step 1: Write the proportion equation
   142,412.38 : 213,665.33 = 58,243.33 : x
2. Step 2: Convert to fraction form
   142,412.38/213,665.33 = 58,243.33/x
3. Step 3: Cross multiply
   142,412.38x = 213,665.33 × 58,243.33
4. Step 4: Simplify right side
   142,412.38x = 12,444,580,324.75
5. Step 5: Solve for x
   x = 12,444,580,324.75/142,412.38
6. Step 6: Final answer
   x = 87,384.12