Finding the Fourth Proportional to 105,750.96, 145,933.81 and 58,003.89

Step by Step Solution

1. Step 1: Write the proportion equation
   105,750.96 : 145,933.81 = 58,003.89 : x
2. Step 2: Convert to fraction form
   105,750.96/145,933.81 = 58,003.89/x
3. Step 3: Cross multiply
   105,750.96x = 145,933.81 × 58,003.89
4. Step 4: Simplify right side
   105,750.96x = 8,464,728,662.52
5. Step 5: Solve for x
   x = 8,464,728,662.52/105,750.96
6. Step 6: Final answer
   x = 80,043.99