Finding the Fourth Proportional to 140,095.18, 193,336.78 and 79,671.34

Step by Step Solution

1. Step 1: Write the proportion equation
   140,095.18 : 193,336.78 = 79,671.34 : x
2. Step 2: Convert to fraction form
   140,095.18/193,336.78 = 79,671.34/x
3. Step 3: Cross multiply
   140,095.18x = 193,336.78 × 79,671.34
4. Step 4: Simplify right side
   140,095.18x = 15,403,400,333.89
5. Step 5: Solve for x
   x = 15,403,400,333.89/140,095.18
6. Step 6: Final answer
   x = 109,949.54