Finding the Fourth Proportional to 108,698.92, 162,807.50 and 83,553.80

Step by Step Solution

1. Step 1: Write the proportion equation
   108,698.92 : 162,807.50 = 83,553.80 : x
2. Step 2: Convert to fraction form
   108,698.92/162,807.50 = 83,553.80/x
3. Step 3: Cross multiply
   108,698.92x = 162,807.50 × 83,553.80
4. Step 4: Simplify right side
   108,698.92x = 13,603,185,293.50
5. Step 5: Solve for x
   x = 13,603,185,293.50/108,698.92
6. Step 6: Final answer
   x = 125,145.54