Finding the Fourth Proportional to 105,759.33, 145,954.50 and 58,012.71

Step by Step Solution

1. Step 1: Write the proportion equation
   105,759.33 : 145,954.50 = 58,012.71 : x
2. Step 2: Convert to fraction form
   105,759.33/145,954.50 = 58,012.71/x
3. Step 3: Cross multiply
   105,759.33x = 145,954.50 × 58,012.71
4. Step 4: Simplify right side
   105,759.33x = 8,467,216,081.70
5. Step 5: Solve for x
   x = 8,467,216,081.70/105,759.33
6. Step 6: Final answer
   x = 80,061.17