Finding the Fourth Proportional to 274,401.69, 411,175.83 and 190,326.12

Step by Step Solution

1. Step 1: Write the proportion equation
   274,401.69 : 411,175.83 = 190,326.12 : x
2. Step 2: Convert to fraction form
   274,401.69/411,175.83 = 190,326.12/x
3. Step 3: Cross multiply
   274,401.69x = 411,175.83 × 190,326.12
4. Step 4: Simplify right side
   274,401.69x = 78,257,499,809.56
5. Step 5: Solve for x
   x = 78,257,499,809.56/274,401.69
6. Step 6: Final answer
   x = 285,193.22