Finding the Fourth Proportional to 140,623.52, 194,060.78 and 76,965.42

Step by Step Solution

1. Step 1: Write the proportion equation
   140,623.52 : 194,060.78 = 76,965.42 : x
2. Step 2: Convert to fraction form
   140,623.52/194,060.78 = 76,965.42/x
3. Step 3: Cross multiply
   140,623.52x = 194,060.78 × 76,965.42
4. Step 4: Simplify right side
   140,623.52x = 14,935,969,053.40
5. Step 5: Solve for x
   x = 14,935,969,053.40/140,623.52
6. Step 6: Final answer
   x = 106,212.46