Finding the Fourth Proportional to 105,083.75, 145,015.59 and 67,358.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105,083.75 : 145,015.59 = 67,358.09 : x
2. Step 2: Convert to fraction form
   105,083.75/145,015.59 = 67,358.09/x
3. Step 3: Cross multiply
   105,083.75x = 145,015.59 × 67,358.09
4. Step 4: Simplify right side
   105,083.75x = 9,767,973,162.62
5. Step 5: Solve for x
   x = 9,767,973,162.62/105,083.75
6. Step 6: Final answer
   x = 92,954.17