Finding the Fourth Proportional to 65,911.77, 90,964.76 and 37,621.71

Step by Step Solution

1. Step 1: Write the proportion equation
   65,911.77 : 90,964.76 = 37,621.71 : x
2. Step 2: Convert to fraction form
   65,911.77/90,964.76 = 37,621.71/x
3. Step 3: Cross multiply
   65,911.77x = 90,964.76 × 37,621.71
4. Step 4: Simplify right side
   65,911.77x = 3,422,249,632.83
5. Step 5: Solve for x
   x = 3,422,249,632.83/65,911.77
6. Step 6: Final answer
   x = 51,921.68