Finding the Fourth Proportional to 65,375.42, 90,212.57 and 36,689.27

Step by Step Solution

1. Step 1: Write the proportion equation
   65,375.42 : 90,212.57 = 36,689.27 : x
2. Step 2: Convert to fraction form
   65,375.42/90,212.57 = 36,689.27/x
3. Step 3: Cross multiply
   65,375.42x = 90,212.57 × 36,689.27
4. Step 4: Simplify right side
   65,375.42x = 3,309,832,703.61
5. Step 5: Solve for x
   x = 3,309,832,703.61/65,375.42
6. Step 6: Final answer
   x = 50,628.09