Finding the Fourth Proportional to 142,409.38, 213,660.83 and 58,240.33

Step by Step Solution

1. Step 1: Write the proportion equation
   142,409.38 : 213,660.83 = 58,240.33 : x
2. Step 2: Convert to fraction form
   142,409.38/213,660.83 = 58,240.33/x
3. Step 3: Cross multiply
   142,409.38x = 213,660.83 × 58,240.33
4. Step 4: Simplify right side
   142,409.38x = 12,443,677,247.27
5. Step 5: Solve for x
   x = 12,443,677,247.27/142,409.38
6. Step 6: Final answer
   x = 87,379.62