Finding the Fourth Proportional to 352,158.86, 485,976.39 and 191,013.50

Step by Step Solution

1. Step 1: Write the proportion equation
   352,158.86 : 485,976.39 = 191,013.50 : x
2. Step 2: Convert to fraction form
   352,158.86/485,976.39 = 191,013.50/x
3. Step 3: Cross multiply
   352,158.86x = 485,976.39 × 191,013.50
4. Step 4: Simplify right side
   352,158.86x = 92,828,051,171.27
5. Step 5: Solve for x
   x = 92,828,051,171.27/352,158.86
6. Step 6: Final answer
   x = 263,597.09