Finding the Fourth Proportional to 105,825.74, 158,698.58 and 42,624.41

Step by Step Solution

1. Step 1: Write the proportion equation
   105,825.74 : 158,698.58 = 42,624.41 : x
2. Step 2: Convert to fraction form
   105,825.74/158,698.58 = 42,624.41/x
3. Step 3: Cross multiply
   105,825.74x = 158,698.58 × 42,624.41
4. Step 4: Simplify right side
   105,825.74x = 6,764,432,333.72
5. Step 5: Solve for x
   x = 6,764,432,333.72/105,825.74
6. Step 6: Final answer
   x = 63,920.49