Finding the Fourth Proportional to 140,645.16, 194,083.56 and 76,983.48

Step by Step Solution

1. Step 1: Write the proportion equation
   140,645.16 : 194,083.56 = 76,983.48 : x
2. Step 2: Convert to fraction form
   140,645.16/194,083.56 = 76,983.48/x
3. Step 3: Cross multiply
   140,645.16x = 194,083.56 × 76,983.48
4. Step 4: Simplify right side
   140,645.16x = 14,941,227,859.59
5. Step 5: Solve for x
   x = 14,941,227,859.59/140,645.16
6. Step 6: Final answer
   x = 106,233.50