Finding the Fourth Proportional to 105,815.47, 146,024.94 and 58,069.62

Step by Step Solution

1. Step 1: Write the proportion equation
   105,815.47 : 146,024.94 = 58,069.62 : x
2. Step 2: Convert to fraction form
   105,815.47/146,024.94 = 58,069.62/x
3. Step 3: Cross multiply
   105,815.47x = 146,024.94 × 58,069.62
4. Step 4: Simplify right side
   105,815.47x = 8,479,612,776.32
5. Step 5: Solve for x
   x = 8,479,612,776.32/105,815.47
6. Step 6: Final answer
   x = 80,135.85