Finding the Fourth Proportional to 352,308.69, 486,188.73 and 191,164.86

Step by Step Solution

1. Step 1: Write the proportion equation
   352,308.69 : 486,188.73 = 191,164.86 : x
2. Step 2: Convert to fraction form
   352,308.69/486,188.73 = 191,164.86/x
3. Step 3: Cross multiply
   352,308.69x = 486,188.73 × 191,164.86
4. Step 4: Simplify right side
   352,308.69x = 92,942,200,504.03
5. Step 5: Solve for x
   x = 92,942,200,504.03/352,308.69
6. Step 6: Final answer
   x = 263,808.99