Finding the Fourth Proportional to 140,672.73, 194,128.52 and 77,010.68

Step by Step Solution

1. Step 1: Write the proportion equation
   140,672.73 : 194,128.52 = 77,010.68 : x
2. Step 2: Convert to fraction form
   140,672.73/194,128.52 = 77,010.68/x
3. Step 3: Cross multiply
   140,672.73x = 194,128.52 × 77,010.68
4. Step 4: Simplify right side
   140,672.73x = 14,949,967,976.90
5. Step 5: Solve for x
   x = 14,949,967,976.90/140,672.73
6. Step 6: Final answer
   x = 106,274.81