Finding the Fourth Proportional to 65,506.81, 90,396.79 and 37,209.37

Step by Step Solution

1. Step 1: Write the proportion equation
   65,506.81 : 90,396.79 = 37,209.37 : x
2. Step 2: Convert to fraction form
   65,506.81/90,396.79 = 37,209.37/x
3. Step 3: Cross multiply
   65,506.81x = 90,396.79 × 37,209.37
4. Step 4: Simplify right side
   65,506.81x = 3,363,607,605.92
5. Step 5: Solve for x
   x = 3,363,607,605.92/65,506.81
6. Step 6: Final answer
   x = 51,347.45