Finding the Fourth Proportional to 105,841.42, 146,063.04 and 58,099.21

Step by Step Solution

1. Step 1: Write the proportion equation
   105,841.42 : 146,063.04 = 58,099.21 : x
2. Step 2: Convert to fraction form
   105,841.42/146,063.04 = 58,099.21/x
3. Step 3: Cross multiply
   105,841.42x = 146,063.04 × 58,099.21
4. Step 4: Simplify right side
   105,841.42x = 8,486,146,503.88
5. Step 5: Solve for x
   x = 8,486,146,503.88/105,841.42
6. Step 6: Final answer
   x = 80,177.94