Finding the Fourth Proportional to 105,285.30, 157,944.34 and 63,155.48

Step by Step Solution

1. Step 1: Write the proportion equation
   105,285.30 : 157,944.34 = 63,155.48 : x
2. Step 2: Convert to fraction form
   105,285.30/157,944.34 = 63,155.48/x
3. Step 3: Cross multiply
   105,285.30x = 157,944.34 × 63,155.48
4. Step 4: Simplify right side
   105,285.30x = 9,975,049,895.21
5. Step 5: Solve for x
   x = 9,975,049,895.21/105,285.30
6. Step 6: Final answer
   x = 94,743.05