Finding the Fourth Proportional to 105,934.64, 146,128.72 and 63,468.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105,934.64 : 146,128.72 = 63,468.56 : x
2. Step 2: Convert to fraction form
   105,934.64/146,128.72 = 63,468.56/x
3. Step 3: Cross multiply
   105,934.64x = 146,128.72 × 63,468.56
4. Step 4: Simplify right side
   105,934.64x = 9,274,579,433.04
5. Step 5: Solve for x
   x = 9,274,579,433.04/105,934.64
6. Step 6: Final answer
   x = 87,550.02