Finding the Fourth Proportional to 105,811.94, 146,020.08 and 58,066.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,811.94 : 146,020.08 = 58,066.10 : x
2. Step 2: Convert to fraction form
   105,811.94/146,020.08 = 58,066.10/x
3. Step 3: Cross multiply
   105,811.94x = 146,020.08 × 58,066.10
4. Step 4: Simplify right side
   105,811.94x = 8,478,816,567.29
5. Step 5: Solve for x
   x = 8,478,816,567.29/105,811.94
6. Step 6: Final answer
   x = 80,131.00