Finding the Fourth Proportional to 65,578.76, 90,496.72 and 36,900.01

Step by Step Solution

1. Step 1: Write the proportion equation
   65,578.76 : 90,496.72 = 36,900.01 : x
2. Step 2: Convert to fraction form
   65,578.76/90,496.72 = 36,900.01/x
3. Step 3: Cross multiply
   65,578.76x = 90,496.72 × 36,900.01
4. Step 4: Simplify right side
   65,578.76x = 3,339,330,032.21
5. Step 5: Solve for x
   x = 3,339,330,032.21/65,578.76
6. Step 6: Final answer
   x = 50,920.91