Finding the Fourth Proportional to 140,940.18, 194,522.31 and 84,351.42

Step by Step Solution

1. Step 1: Write the proportion equation
   140,940.18 : 194,522.31 = 84,351.42 : x
2. Step 2: Convert to fraction form
   140,940.18/194,522.31 = 84,351.42/x
3. Step 3: Cross multiply
   140,940.18x = 194,522.31 × 84,351.42
4. Step 4: Simplify right side
   140,940.18x = 16,408,233,070.18
5. Step 5: Solve for x
   x = 16,408,233,070.18/140,940.18
6. Step 6: Final answer
   x = 116,419.84