Finding the Fourth Proportional to 195,329.50, 269,554.71 and 105,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   195,329.50 : 269,554.71 = 105,905.50 : x
2. Step 2: Convert to fraction form
   195,329.50/269,554.71 = 105,905.50/x
3. Step 3: Cross multiply
   195,329.50x = 269,554.71 × 105,905.50
4. Step 4: Simplify right side
   195,329.50x = 28,547,326,339.91
5. Step 5: Solve for x
   x = 28,547,326,339.91/195,329.50
6. Step 6: Final answer
   x = 146,149.59