Finding the Fourth Proportional to 105,448.80, 158,127.12 and 31,559.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,448.80 : 158,127.12 = 31,559.52 : x
2. Step 2: Convert to fraction form
   105,448.80/158,127.12 = 31,559.52/x
3. Step 3: Cross multiply
   105,448.80x = 158,127.12 × 31,559.52
4. Step 4: Simplify right side
   105,448.80x = 4,990,416,006.18
5. Step 5: Solve for x
   x = 4,990,416,006.18/105,448.80
6. Step 6: Final answer
   x = 47,325.49