Finding the Fourth Proportional to 105,327, 158,017.86 and 31,455

Step by Step Solution

1. Step 1: Write the proportion equation
   105,327 : 158,017.86 = 31,455 : x
2. Step 2: Convert to fraction form
   105,327/158,017.86 = 31,455/x
3. Step 3: Cross multiply
   105,327x = 158,017.86 × 31,455
4. Step 4: Simplify right side
   105,327x = 4,970,451,786.30
5. Step 5: Solve for x
   x = 4,970,451,786.30/105,327
6. Step 6: Final answer
   x = 47,190.67