Finding the Fourth Proportional to 105,733, 145,910.52 and 57,986.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,733 : 145,910.52 = 57,986.20 : x
2. Step 2: Convert to fraction form
   105,733/145,910.52 = 57,986.20/x
3. Step 3: Cross multiply
   105,733x = 145,910.52 × 57,986.20
4. Step 4: Simplify right side
   105,733x = 8,460,796,594.82
5. Step 5: Solve for x
   x = 8,460,796,594.82/105,733
6. Step 6: Final answer
   x = 80,020.40