Finding the Fourth Proportional to 65,419.30, 90,273.49 and 37,124.98

Step by Step Solution

1. Step 1: Write the proportion equation
   65,419.30 : 90,273.49 = 37,124.98 : x
2. Step 2: Convert to fraction form
   65,419.30/90,273.49 = 37,124.98/x
3. Step 3: Cross multiply
   65,419.30x = 90,273.49 × 37,124.98
4. Step 4: Simplify right side
   65,419.30x = 3,351,401,510.78
5. Step 5: Solve for x
   x = 3,351,401,510.78/65,419.30
6. Step 6: Final answer
   x = 51,229.55