Finding the Fourth Proportional to 105,886.62, 146,103.48 and 71,922.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,886.62 : 146,103.48 = 71,922.24 : x
2. Step 2: Convert to fraction form
   105,886.62/146,103.48 = 71,922.24/x
3. Step 3: Cross multiply
   105,886.62x = 146,103.48 × 71,922.24
4. Step 4: Simplify right side
   105,886.62x = 10,508,089,553.40
5. Step 5: Solve for x
   x = 10,508,089,553.40/105,886.62
6. Step 6: Final answer
   x = 99,239.07