Finding the Fourth Proportional to 71,936.29, 107,891.37 and 19,333.47

Step by Step Solution

1. Step 1: Write the proportion equation
   71,936.29 : 107,891.37 = 19,333.47 : x
2. Step 2: Convert to fraction form
   71,936.29/107,891.37 = 19,333.47/x
3. Step 3: Cross multiply
   71,936.29x = 107,891.37 × 19,333.47
4. Step 4: Simplify right side
   71,936.29x = 2,085,914,565.15
5. Step 5: Solve for x
   x = 2,085,914,565.15/71,936.29
6. Step 6: Final answer
   x = 28,996.69