Finding the Fourth Proportional to 105,895.98, 146,205 and 65,652.66

Step by Step Solution

1. Step 1: Write the proportion equation
   105,895.98 : 146,205 = 65,652.66 : x
2. Step 2: Convert to fraction form
   105,895.98/146,205 = 65,652.66/x
3. Step 3: Cross multiply
   105,895.98x = 146,205 × 65,652.66
4. Step 4: Simplify right side
   105,895.98x = 9,598,747,155.30
5. Step 5: Solve for x
   x = 9,598,747,155.30/105,895.98
6. Step 6: Final answer
   x = 90,643.17