Finding the Fourth Proportional to 105,888.12, 146,105.55 and 71,923.74

Step by Step Solution

1. Step 1: Write the proportion equation
   105,888.12 : 146,105.55 = 71,923.74 : x
2. Step 2: Convert to fraction form
   105,888.12/146,105.55 = 71,923.74/x
3. Step 3: Cross multiply
   105,888.12x = 146,105.55 × 71,923.74
4. Step 4: Simplify right side
   105,888.12x = 10,508,457,590.76
5. Step 5: Solve for x
   x = 10,508,457,590.76/105,888.12
6. Step 6: Final answer
   x = 99,241.14