Finding the Fourth Proportional to 105,886.32, 146,112.36 and 63,443.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,886.32 : 146,112.36 = 63,443.76 : x
2. Step 2: Convert to fraction form
   105,886.32/146,112.36 = 63,443.76/x
3. Step 3: Cross multiply
   105,886.32x = 146,112.36 × 63,443.76
4. Step 4: Simplify right side
   105,886.32x = 9,269,917,500.87
5. Step 5: Solve for x
   x = 9,269,917,500.87/105,886.32
6. Step 6: Final answer
   x = 87,545.94