Finding the Fourth Proportional to 105,795.46, 146,038.37 and 71,819.13

Step by Step Solution

1. Step 1: Write the proportion equation
   105,795.46 : 146,038.37 = 71,819.13 : x
2. Step 2: Convert to fraction form
   105,795.46/146,038.37 = 71,819.13/x
3. Step 3: Cross multiply
   105,795.46x = 146,038.37 × 71,819.13
4. Step 4: Simplify right side
   105,795.46x = 10,488,348,320.92
5. Step 5: Solve for x
   x = 10,488,348,320.92/105,795.46
6. Step 6: Final answer
   x = 99,137.98