Finding the Fourth Proportional to 105,945.72, 158,896.86 and 31,045.68

Step by Step Solution

1. Step 1: Write the proportion equation
   105,945.72 : 158,896.86 = 31,045.68 : x
2. Step 2: Convert to fraction form
   105,945.72/158,896.86 = 31,045.68/x
3. Step 3: Cross multiply
   105,945.72x = 158,896.86 × 31,045.68
4. Step 4: Simplify right side
   105,945.72x = 4,933,061,068.56
5. Step 5: Solve for x
   x = 4,933,061,068.56/105,945.72
6. Step 6: Final answer
   x = 46,562.16