Finding the Fourth Proportional to 139,951.54, 193,126.17 and 79,514.20

Step by Step Solution

1. Step 1: Write the proportion equation
   139,951.54 : 193,126.17 = 79,514.20 : x
2. Step 2: Convert to fraction form
   139,951.54/193,126.17 = 79,514.20/x
3. Step 3: Cross multiply
   139,951.54x = 193,126.17 × 79,514.20
4. Step 4: Simplify right side
   139,951.54x = 15,356,272,906.61
5. Step 5: Solve for x
   x = 15,356,272,906.61/139,951.54
6. Step 6: Final answer
   x = 109,725.64