Finding the Fourth Proportional to 65,574.43, 90,498.68 and 37,280.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,574.43 : 90,498.68 = 37,280.05 : x
2. Step 2: Convert to fraction form
   65,574.43/90,498.68 = 37,280.05/x
3. Step 3: Cross multiply
   65,574.43x = 90,498.68 × 37,280.05
4. Step 4: Simplify right side
   65,574.43x = 3,373,795,315.33
5. Step 5: Solve for x
   x = 3,373,795,315.33/65,574.43
6. Step 6: Final answer
   x = 51,449.86