Finding the Fourth Proportional to 123,035.60, 169,786.32 and 75,288.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,035.60 : 169,786.32 = 75,288.80 : x
2. Step 2: Convert to fraction form
   123,035.60/169,786.32 = 75,288.80/x
3. Step 3: Cross multiply
   123,035.60x = 169,786.32 × 75,288.80
4. Step 4: Simplify right side
   123,035.60x = 12,783,008,289.22
5. Step 5: Solve for x
   x = 12,783,008,289.22/123,035.60
6. Step 6: Final answer
   x = 103,896.83