Finding the Fourth Proportional to 140,361.06, 193,697.94 and 76,698.72

Step by Step Solution

1. Step 1: Write the proportion equation
   140,361.06 : 193,697.94 = 76,698.72 : x
2. Step 2: Convert to fraction form
   140,361.06/193,697.94 = 76,698.72/x
3. Step 3: Cross multiply
   140,361.06x = 193,697.94 × 76,698.72
4. Step 4: Simplify right side
   140,361.06x = 14,856,384,064.64
5. Step 5: Solve for x
   x = 14,856,384,064.64/140,361.06
6. Step 6: Final answer
   x = 105,844.06