Finding the Fourth Proportional to 65,660.12, 90,588.48 and 37,358.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,660.12 : 90,588.48 = 37,358.72 : x
2. Step 2: Convert to fraction form
   65,660.12/90,588.48 = 37,358.72/x
3. Step 3: Cross multiply
   65,660.12x = 90,588.48 × 37,358.72
4. Step 4: Simplify right side
   65,660.12x = 3,384,269,659.55
5. Step 5: Solve for x
   x = 3,384,269,659.55/65,660.12
6. Step 6: Final answer
   x = 51,542.24