Finding the Fourth Proportional to 195,355.50, 269,590.71 and 105,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   195,355.50 : 269,590.71 = 105,931.50 : x
2. Step 2: Convert to fraction form
   195,355.50/269,590.71 = 105,931.50/x
3. Step 3: Cross multiply
   195,355.50x = 269,590.71 × 105,931.50
4. Step 4: Simplify right side
   195,355.50x = 28,558,148,296.37
5. Step 5: Solve for x
   x = 28,558,148,296.37/195,355.50
6. Step 6: Final answer
   x = 146,185.54