Finding the Fourth Proportional to 105,466.86, 158,196.15 and 38,878.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,466.86 : 158,196.15 = 38,878.20 : x
2. Step 2: Convert to fraction form
   105,466.86/158,196.15 = 38,878.20/x
3. Step 3: Cross multiply
   105,466.86x = 158,196.15 × 38,878.20
4. Step 4: Simplify right side
   105,466.86x = 6,150,381,558.93
5. Step 5: Solve for x
   x = 6,150,381,558.93/105,466.86
6. Step 6: Final answer
   x = 58,315.77