Finding the Fourth Proportional to 140,635.31, 194,069.27 and 76,960.80

Step by Step Solution

1. Step 1: Write the proportion equation
   140,635.31 : 194,069.27 = 76,960.80 : x
2. Step 2: Convert to fraction form
   140,635.31/194,069.27 = 76,960.80/x
3. Step 3: Cross multiply
   140,635.31x = 194,069.27 × 76,960.80
4. Step 4: Simplify right side
   140,635.31x = 14,935,726,467.02
5. Step 5: Solve for x
   x = 14,935,726,467.02/140,635.31
6. Step 6: Final answer
   x = 106,201.83