Finding the Fourth Proportional to 105,819.43, 146,037.38 and 69,947.23

Step by Step Solution

1. Step 1: Write the proportion equation
   105,819.43 : 146,037.38 = 69,947.23 : x
2. Step 2: Convert to fraction form
   105,819.43/146,037.38 = 69,947.23/x
3. Step 3: Cross multiply
   105,819.43x = 146,037.38 × 69,947.23
4. Step 4: Simplify right side
   105,819.43x = 10,214,910,207.46
5. Step 5: Solve for x
   x = 10,214,910,207.46/105,819.43
6. Step 6: Final answer
   x = 96,531.52