Finding the Fourth Proportional to 105,811.38, 146,023.91 and 58,066.44

Step by Step Solution

1. Step 1: Write the proportion equation
   105,811.38 : 146,023.91 = 58,066.44 : x
2. Step 2: Convert to fraction form
   105,811.38/146,023.91 = 58,066.44/x
3. Step 3: Cross multiply
   105,811.38x = 146,023.91 × 58,066.44
4. Step 4: Simplify right side
   105,811.38x = 8,479,088,315.03
5. Step 5: Solve for x
   x = 8,479,088,315.03/105,811.38
6. Step 6: Final answer
   x = 80,133.99