Finding the Fourth Proportional to 142,468.24, 213,623.38 and 58,287.48

Step by Step Solution

1. Step 1: Write the proportion equation
   142,468.24 : 213,623.38 = 58,287.48 : x
2. Step 2: Convert to fraction form
   142,468.24/213,623.38 = 58,287.48/x
3. Step 3: Cross multiply
   142,468.24x = 213,623.38 × 58,287.48
4. Step 4: Simplify right side
   142,468.24x = 12,451,568,489.28
5. Step 5: Solve for x
   x = 12,451,568,489.28/142,468.24
6. Step 6: Final answer
   x = 87,398.91