Finding the Fourth Proportional to 65,056.72, 89,777.10 and 36,761.80

Step by Step Solution

1. Step 1: Write the proportion equation
   65,056.72 : 89,777.10 = 36,761.80 : x
2. Step 2: Convert to fraction form
   65,056.72/89,777.10 = 36,761.80/x
3. Step 3: Cross multiply
   65,056.72x = 89,777.10 × 36,761.80
4. Step 4: Simplify right side
   65,056.72x = 3,300,367,570.34
5. Step 5: Solve for x
   x = 3,300,367,570.34/65,056.72
6. Step 6: Final answer
   x = 50,730.62