Finding the Fourth Proportional to 105,811.01, 146,020.98 and 58,068.80

Step by Step Solution

1. Step 1: Write the proportion equation
   105,811.01 : 146,020.98 = 58,068.80 : x
2. Step 2: Convert to fraction form
   105,811.01/146,020.98 = 58,068.80/x
3. Step 3: Cross multiply
   105,811.01x = 146,020.98 × 58,068.80
4. Step 4: Simplify right side
   105,811.01x = 8,479,262,792.02
5. Step 5: Solve for x
   x = 8,479,262,792.02/105,811.01
6. Step 6: Final answer
   x = 80,135.92