Finding the Fourth Proportional to 139,590.06, 192,668.49 and 79,196.05

Step by Step Solution

1. Step 1: Write the proportion equation
   139,590.06 : 192,668.49 = 79,196.05 : x
2. Step 2: Convert to fraction form
   139,590.06/192,668.49 = 79,196.05/x
3. Step 3: Cross multiply
   139,590.06x = 192,668.49 × 79,196.05
4. Step 4: Simplify right side
   139,590.06x = 15,258,584,146.12
5. Step 5: Solve for x
   x = 15,258,584,146.12/139,590.06
6. Step 6: Final answer
   x = 109,309.96