Finding the Fourth Proportional to 141,900.27, 196,667.65 and 139,243.07

Step by Step Solution

1. Step 1: Write the proportion equation
   141,900.27 : 196,667.65 = 139,243.07 : x
2. Step 2: Convert to fraction form
   141,900.27/196,667.65 = 139,243.07/x
3. Step 3: Cross multiply
   141,900.27x = 196,667.65 × 139,243.07
4. Step 4: Simplify right side
   141,900.27x = 27,384,607,355.69
5. Step 5: Solve for x
   x = 27,384,607,355.69/141,900.27
6. Step 6: Final answer
   x = 192,984.89