Finding the Fourth Proportional to 86,196.30, 118,965.05 and 50,379.32

Step by Step Solution

1. Step 1: Write the proportion equation
   86,196.30 : 118,965.05 = 50,379.32 : x
2. Step 2: Convert to fraction form
   86,196.30/118,965.05 = 50,379.32/x
3. Step 3: Cross multiply
   86,196.30x = 118,965.05 × 50,379.32
4. Step 4: Simplify right side
   86,196.30x = 5,993,377,476.04
5. Step 5: Solve for x
   x = 5,993,377,476.04/86,196.30
6. Step 6: Final answer
   x = 69,531.73