Finding the Fourth Proportional to 105,991.18, 146,275.97 and 60,683.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,991.18 : 146,275.97 = 60,683.38 : x
2. Step 2: Convert to fraction form
   105,991.18/146,275.97 = 60,683.38/x
3. Step 3: Cross multiply
   105,991.18x = 146,275.97 × 60,683.38
4. Step 4: Simplify right side
   105,991.18x = 8,876,519,603.27
5. Step 5: Solve for x
   x = 8,876,519,603.27/105,991.18
6. Step 6: Final answer
   x = 83,747.72