Finding the Fourth Proportional to 65,689.35, 90,651.39 and 37,395

Step by Step Solution

1. Step 1: Write the proportion equation
   65,689.35 : 90,651.39 = 37,395 : x
2. Step 2: Convert to fraction form
   65,689.35/90,651.39 = 37,395/x
3. Step 3: Cross multiply
   65,689.35x = 90,651.39 × 37,395
4. Step 4: Simplify right side
   65,689.35x = 3,389,908,729.05
5. Step 5: Solve for x
   x = 3,389,908,729.05/65,689.35
6. Step 6: Final answer
   x = 51,605.15