Finding the Fourth Proportional to 195,043.50, 269,160.03 and 105,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   195,043.50 : 269,160.03 = 105,619.50 : x
2. Step 2: Convert to fraction form
   195,043.50/269,160.03 = 105,619.50/x
3. Step 3: Cross multiply
   195,043.50x = 269,160.03 × 105,619.50
4. Step 4: Simplify right side
   195,043.50x = 28,428,547,788.59
5. Step 5: Solve for x
   x = 28,428,547,788.59/195,043.50
6. Step 6: Final answer
   x = 145,754.91