Finding the Fourth Proportional to 188,111.75, 259,601.69 and 103,231.85

Step by Step Solution

1. Step 1: Write the proportion equation
   188,111.75 : 259,601.69 = 103,231.85 : x
2. Step 2: Convert to fraction form
   188,111.75/259,601.69 = 103,231.85/x
3. Step 3: Cross multiply
   188,111.75x = 259,601.69 × 103,231.85
4. Step 4: Simplify right side
   188,111.75x = 26,799,161,681.90
5. Step 5: Solve for x
   x = 26,799,161,681.90/188,111.75
6. Step 6: Final answer
   x = 142,464.05