Finding the Fourth Proportional to 86,171.50, 118,909.38 and 48,443.32

Step by Step Solution

1. Step 1: Write the proportion equation
   86,171.50 : 118,909.38 = 48,443.32 : x
2. Step 2: Convert to fraction form
   86,171.50/118,909.38 = 48,443.32/x
3. Step 3: Cross multiply
   86,171.50x = 118,909.38 × 48,443.32
4. Step 4: Simplify right side
   86,171.50x = 5,760,365,146.34
5. Step 5: Solve for x
   x = 5,760,365,146.34/86,171.50
6. Step 6: Final answer
   x = 66,847.68