Finding the Fourth Proportional to 65,222.50, 90,007.05 and 35,414.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,222.50 : 90,007.05 = 35,414.50 : x
2. Step 2: Convert to fraction form
   65,222.50/90,007.05 = 35,414.50/x
3. Step 3: Cross multiply
   65,222.50x = 90,007.05 × 35,414.50
4. Step 4: Simplify right side
   65,222.50x = 3,187,554,672.23
5. Step 5: Solve for x
   x = 3,187,554,672.23/65,222.50
6. Step 6: Final answer
   x = 48,872.01