Finding the Fourth Proportional to 105,479, 158,257.42 and 55,557.08

Step by Step Solution

1. Step 1: Write the proportion equation
   105,479 : 158,257.42 = 55,557.08 : x
2. Step 2: Convert to fraction form
   105,479/158,257.42 = 55,557.08/x
3. Step 3: Cross multiply
   105,479x = 158,257.42 × 55,557.08
4. Step 4: Simplify right side
   105,479x = 8,792,320,143.53
5. Step 5: Solve for x
   x = 8,792,320,143.53/105,479
6. Step 6: Final answer
   x = 83,356.12