Finding the Fourth Proportional to 261,162.29, 391,792.61 and 186,096.22

Step by Step Solution

1. Step 1: Write the proportion equation
   261,162.29 : 391,792.61 = 186,096.22 : x
2. Step 2: Convert to fraction form
   261,162.29/391,792.61 = 186,096.22/x
3. Step 3: Cross multiply
   261,162.29x = 391,792.61 × 186,096.22
4. Step 4: Simplify right side
   261,162.29x = 72,911,123,230.69
5. Step 5: Solve for x
   x = 72,911,123,230.69/261,162.29
6. Step 6: Final answer
   x = 279,179.37