Finding the Fourth Proportional to 71,734.72, 98,994.24 and 39,904

Step by Step Solution

1. Step 1: Write the proportion equation
   71,734.72 : 98,994.24 = 39,904 : x
2. Step 2: Convert to fraction form
   71,734.72/98,994.24 = 39,904/x
3. Step 3: Cross multiply
   71,734.72x = 98,994.24 × 39,904
4. Step 4: Simplify right side
   71,734.72x = 3,950,266,152.96
5. Step 5: Solve for x
   x = 3,950,266,152.96/71,734.72
6. Step 6: Final answer
   x = 55,067.70