Finding the Fourth Proportional to 188,786.52, 260,530.56 and 103,908.78

Step by Step Solution

1. Step 1: Write the proportion equation
   188,786.52 : 260,530.56 = 103,908.78 : x
2. Step 2: Convert to fraction form
   188,786.52/260,530.56 = 103,908.78/x
3. Step 3: Cross multiply
   188,786.52x = 260,530.56 × 103,908.78
4. Step 4: Simplify right side
   188,786.52x = 27,071,412,642.32
5. Step 5: Solve for x
   x = 27,071,412,642.32/188,786.52
6. Step 6: Final answer
   x = 143,396.96