Finding the Fourth Proportional to 65,900.21, 90,942.71 and 35,685.53

Step by Step Solution

1. Step 1: Write the proportion equation
   65,900.21 : 90,942.71 = 35,685.53 : x
2. Step 2: Convert to fraction form
   65,900.21/90,942.71 = 35,685.53/x
3. Step 3: Cross multiply
   65,900.21x = 90,942.71 × 35,685.53
4. Step 4: Simplify right side
   65,900.21x = 3,245,338,351.27
5. Step 5: Solve for x
   x = 3,245,338,351.27/65,900.21
6. Step 6: Final answer
   x = 49,246.26