Finding the Fourth Proportional to 139,667.04, 192,744.89 and 79,240.23

Step by Step Solution

1. Step 1: Write the proportion equation
   139,667.04 : 192,744.89 = 79,240.23 : x
2. Step 2: Convert to fraction form
   139,667.04/192,744.89 = 79,240.23/x
3. Step 3: Cross multiply
   139,667.04x = 192,744.89 × 79,240.23
4. Step 4: Simplify right side
   139,667.04x = 15,273,149,018.72
5. Step 5: Solve for x
   x = 15,273,149,018.72/139,667.04
6. Step 6: Final answer
   x = 109,354.00