Finding the Fourth Proportional to 65,545.89, 90,453.96 and 37,251.78

Step by Step Solution

1. Step 1: Write the proportion equation
   65,545.89 : 90,453.96 = 37,251.78 : x
2. Step 2: Convert to fraction form
   65,545.89/90,453.96 = 37,251.78/x
3. Step 3: Cross multiply
   65,545.89x = 90,453.96 × 37,251.78
4. Step 4: Simplify right side
   65,545.89x = 3,369,571,018.05
5. Step 5: Solve for x
   x = 3,369,571,018.05/65,545.89
6. Step 6: Final answer
   x = 51,407.82