Finding the Fourth Proportional to 86,443, 119,291.36 and 48,718.60

Step by Step Solution

1. Step 1: Write the proportion equation
   86,443 : 119,291.36 = 48,718.60 : x
2. Step 2: Convert to fraction form
   86,443/119,291.36 = 48,718.60/x
3. Step 3: Cross multiply
   86,443x = 119,291.36 × 48,718.60
4. Step 4: Simplify right side
   86,443x = 5,811,708,051.30
5. Step 5: Solve for x
   x = 5,811,708,051.30/86,443
6. Step 6: Final answer
   x = 67,231.68