Finding the Fourth Proportional to 73,910.82, 101,996.91 and 39,919.31

Step by Step Solution

1. Step 1: Write the proportion equation
   73,910.82 : 101,996.91 = 39,919.31 : x
2. Step 2: Convert to fraction form
   73,910.82/101,996.91 = 39,919.31/x
3. Step 3: Cross multiply
   73,910.82x = 101,996.91 × 39,919.31
4. Step 4: Simplify right side
   73,910.82x = 4,071,645,759.35
5. Step 5: Solve for x
   x = 4,071,645,759.35/73,910.82
6. Step 6: Final answer
   x = 55,088.63