Finding the Fourth Proportional to 105,677.58, 158,470.29 and 39,967.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,677.58 : 158,470.29 = 39,967.50 : x
2. Step 2: Convert to fraction form
   105,677.58/158,470.29 = 39,967.50/x
3. Step 3: Cross multiply
   105,677.58x = 158,470.29 × 39,967.50
4. Step 4: Simplify right side
   105,677.58x = 6,333,661,315.58
5. Step 5: Solve for x
   x = 6,333,661,315.58/105,677.58
6. Step 6: Final answer
   x = 59,933.82