Finding the Fourth Proportional to 105,879.94, 146,103.57 and 63,437.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,879.94 : 146,103.57 = 63,437.38 : x
2. Step 2: Convert to fraction form
   105,879.94/146,103.57 = 63,437.38/x
3. Step 3: Cross multiply
   105,879.94x = 146,103.57 × 63,437.38
4. Step 4: Simplify right side
   105,879.94x = 9,268,427,689.45
5. Step 5: Solve for x
   x = 9,268,427,689.45/105,879.94
6. Step 6: Final answer
   x = 87,537.15