Finding the Fourth Proportional to 140,635.49, 194,075.49 and 76,103.31

Step by Step Solution

1. Step 1: Write the proportion equation
   140,635.49 : 194,075.49 = 76,103.31 : x
2. Step 2: Convert to fraction form
   140,635.49/194,075.49 = 76,103.31/x
3. Step 3: Cross multiply
   140,635.49x = 194,075.49 × 76,103.31
4. Step 4: Simplify right side
   140,635.49x = 14,769,787,611.72
5. Step 5: Solve for x
   x = 14,769,787,611.72/140,635.49
6. Step 6: Final answer
   x = 105,021.77