Finding the Fourth Proportional to 140,942.72, 194,506.56 and 77,282.79

Step by Step Solution

1. Step 1: Write the proportion equation
   140,942.72 : 194,506.56 = 77,282.79 : x
2. Step 2: Convert to fraction form
   140,942.72/194,506.56 = 77,282.79/x
3. Step 3: Cross multiply
   140,942.72x = 194,506.56 × 77,282.79
4. Step 4: Simplify right side
   140,942.72x = 15,032,009,630.10
5. Step 5: Solve for x
   x = 15,032,009,630.10/140,942.72
6. Step 6: Final answer
   x = 106,653.33