Finding the Fourth Proportional to 105,684.82, 145,855.10 and 60,369.58

Step by Step Solution

1. Step 1: Write the proportion equation
   105,684.82 : 145,855.10 = 60,369.58 : x
2. Step 2: Convert to fraction form
   105,684.82/145,855.10 = 60,369.58/x
3. Step 3: Cross multiply
   105,684.82x = 145,855.10 × 60,369.58
4. Step 4: Simplify right side
   105,684.82x = 8,805,211,127.86
5. Step 5: Solve for x
   x = 8,805,211,127.86/105,684.82
6. Step 6: Final answer
   x = 83,315.76