Finding the Fourth Proportional to 140,573.10, 193,993.68 and 76,912.27

Step by Step Solution

1. Step 1: Write the proportion equation
   140,573.10 : 193,993.68 = 76,912.27 : x
2. Step 2: Convert to fraction form
   140,573.10/193,993.68 = 76,912.27/x
3. Step 3: Cross multiply
   140,573.10x = 193,993.68 × 76,912.27
4. Step 4: Simplify right side
   140,573.10x = 14,920,494,097.89
5. Step 5: Solve for x
   x = 14,920,494,097.89/140,573.10
6. Step 6: Final answer
   x = 106,140.46