Finding the Fourth Proportional to 105,810.68, 146,019.84 and 58,067.12

Step by Step Solution

1. Step 1: Write the proportion equation
   105,810.68 : 146,019.84 = 58,067.12 : x
2. Step 2: Convert to fraction form
   105,810.68/146,019.84 = 58,067.12/x
3. Step 3: Cross multiply
   105,810.68x = 146,019.84 × 58,067.12
4. Step 4: Simplify right side
   105,810.68x = 8,478,951,571.66
5. Step 5: Solve for x
   x = 8,478,951,571.66/105,810.68
6. Step 6: Final answer
   x = 80,133.23