Finding the Fourth Proportional to 78,960.15, 118,446.30 and 26,369.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,960.15 : 118,446.30 = 26,369.69 : x
2. Step 2: Convert to fraction form
   78,960.15/118,446.30 = 26,369.69/x
3. Step 3: Cross multiply
   78,960.15x = 118,446.30 × 26,369.69
4. Step 4: Simplify right side
   78,960.15x = 3,123,391,620.42
5. Step 5: Solve for x
   x = 3,123,391,620.42/78,960.15
6. Step 6: Final answer
   x = 39,556.56