Finding the Fourth Proportional to 140,245.98, 193,556.04 and 78,994.17

Step by Step Solution

1. Step 1: Write the proportion equation
   140,245.98 : 193,556.04 = 78,994.17 : x
2. Step 2: Convert to fraction form
   140,245.98/193,556.04 = 78,994.17/x
3. Step 3: Cross multiply
   140,245.98x = 193,556.04 × 78,994.17
4. Step 4: Simplify right side
   140,245.98x = 15,289,798,728.29
5. Step 5: Solve for x
   x = 15,289,798,728.29/140,245.98
6. Step 6: Final answer
   x = 109,021.30