Finding the Fourth Proportional to 105,454.80, 158,136.12 and 31,565.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,454.80 : 158,136.12 = 31,565.52 : x
2. Step 2: Convert to fraction form
   105,454.80/158,136.12 = 31,565.52/x
3. Step 3: Cross multiply
   105,454.80x = 158,136.12 × 31,565.52
4. Step 4: Simplify right side
   105,454.80x = 4,991,648,858.58
5. Step 5: Solve for x
   x = 4,991,648,858.58/105,454.80
6. Step 6: Final answer
   x = 47,334.49