Finding the Fourth Proportional to 105,510.36, 145,614.20 and 63,067.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,510.36 : 145,614.20 = 63,067.98 : x
2. Step 2: Convert to fraction form
   105,510.36/145,614.20 = 63,067.98/x
3. Step 3: Cross multiply
   105,510.36x = 145,614.20 × 63,067.98
4. Step 4: Simplify right side
   105,510.36x = 9,183,593,137.98
5. Step 5: Solve for x
   x = 9,183,593,137.98/105,510.36
6. Step 6: Final answer
   x = 87,039.73