Finding the Fourth Proportional to 105,909.57, 146,155.68 and 60,588.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105,909.57 : 146,155.68 = 60,588.09 : x
2. Step 2: Convert to fraction form
   105,909.57/146,155.68 = 60,588.09/x
3. Step 3: Cross multiply
   105,909.57x = 146,155.68 × 60,588.09
4. Step 4: Simplify right side
   105,909.57x = 8,855,293,493.85
5. Step 5: Solve for x
   x = 8,855,293,493.85/105,909.57
6. Step 6: Final answer
   x = 83,611.84