Finding the Fourth Proportional to 65,016.72, 89,746.92 and 50,968.08

Step by Step Solution

1. Step 1: Write the proportion equation
   65,016.72 : 89,746.92 = 50,968.08 : x
2. Step 2: Convert to fraction form
   65,016.72/89,746.92 = 50,968.08/x
3. Step 3: Cross multiply
   65,016.72x = 89,746.92 × 50,968.08
4. Step 4: Simplify right side
   65,016.72x = 4,574,228,198.31
5. Step 5: Solve for x
   x = 4,574,228,198.31/65,016.72
6. Step 6: Final answer
   x = 70,354.64