Finding the Fourth Proportional to 105,867.54, 146,165.57 and 65,624.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,867.54 : 146,165.57 = 65,624.10 : x
2. Step 2: Convert to fraction form
   105,867.54/146,165.57 = 65,624.10/x
3. Step 3: Cross multiply
   105,867.54x = 146,165.57 × 65,624.10
4. Step 4: Simplify right side
   105,867.54x = 9,591,983,982.24
5. Step 5: Solve for x
   x = 9,591,983,982.24/105,867.54
6. Step 6: Final answer
   x = 90,603.64