Finding the Fourth Proportional to 105,524.32, 158,281.62 and 30,642.80

Step by Step Solution

1. Step 1: Write the proportion equation
   105,524.32 : 158,281.62 = 30,642.80 : x
2. Step 2: Convert to fraction form
   105,524.32/158,281.62 = 30,642.80/x
3. Step 3: Cross multiply
   105,524.32x = 158,281.62 × 30,642.80
4. Step 4: Simplify right side
   105,524.32x = 4,850,192,025.34
5. Step 5: Solve for x
   x = 4,850,192,025.34/105,524.32
6. Step 6: Final answer
   x = 45,962.79