Finding the Fourth Proportional to 65,741.92, 90,722.10 and 37,456.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,741.92 : 90,722.10 = 37,456.72 : x
2. Step 2: Convert to fraction form
   65,741.92/90,722.10 = 37,456.72/x
3. Step 3: Cross multiply
   65,741.92x = 90,722.10 × 37,456.72
4. Step 4: Simplify right side
   65,741.92x = 3,398,152,297.51
5. Step 5: Solve for x
   x = 3,398,152,297.51/65,741.92
6. Step 6: Final answer
   x = 51,689.28