Finding the Fourth Proportional to 186,061.82, 256,757.57 and 105,494.80

Step by Step Solution

1. Step 1: Write the proportion equation
   186,061.82 : 256,757.57 = 105,494.80 : x
2. Step 2: Convert to fraction form
   186,061.82/256,757.57 = 105,494.80/x
3. Step 3: Cross multiply
   186,061.82x = 256,757.57 × 105,494.80
4. Step 4: Simplify right side
   186,061.82x = 27,086,587,326.27
5. Step 5: Solve for x
   x = 27,086,587,326.27/186,061.82
6. Step 6: Final answer
   x = 145,578.43