Finding the Fourth Proportional to 140,826.80, 194,339.67 and 76,294.55

Step by Step Solution

1. Step 1: Write the proportion equation
   140,826.80 : 194,339.67 = 76,294.55 : x
2. Step 2: Convert to fraction form
   140,826.80/194,339.67 = 76,294.55/x
3. Step 3: Cross multiply
   140,826.80x = 194,339.67 × 76,294.55
4. Step 4: Simplify right side
   140,826.80x = 14,827,056,698.10
5. Step 5: Solve for x
   x = 14,827,056,698.10/140,826.80
6. Step 6: Final answer
   x = 105,285.76