Finding the Fourth Proportional to 65,315.76, 90,142.79 and 37,018.41

Step by Step Solution

1. Step 1: Write the proportion equation
   65,315.76 : 90,142.79 = 37,018.41 : x
2. Step 2: Convert to fraction form
   65,315.76/90,142.79 = 37,018.41/x
3. Step 3: Cross multiply
   65,315.76x = 90,142.79 × 37,018.41
4. Step 4: Simplify right side
   65,315.76x = 3,336,942,443.86
5. Step 5: Solve for x
   x = 3,336,942,443.86/65,315.76
6. Step 6: Final answer
   x = 51,089.39