Finding the Fourth Proportional to 105,946.12, 146,200.98 and 58,196.62

Step by Step Solution

1. Step 1: Write the proportion equation
   105,946.12 : 146,200.98 = 58,196.62 : x
2. Step 2: Convert to fraction form
   105,946.12/146,200.98 = 58,196.62/x
3. Step 3: Cross multiply
   105,946.12x = 146,200.98 × 58,196.62
4. Step 4: Simplify right side
   105,946.12x = 8,508,402,876.69
5. Step 5: Solve for x
   x = 8,508,402,876.69/105,946.12
6. Step 6: Final answer
   x = 80,308.77