Finding the Fourth Proportional to 65,370.48, 90,215.76 and 37,078

Step by Step Solution

1. Step 1: Write the proportion equation
   65,370.48 : 90,215.76 = 37,078 : x
2. Step 2: Convert to fraction form
   65,370.48/90,215.76 = 37,078/x
3. Step 3: Cross multiply
   65,370.48x = 90,215.76 × 37,078
4. Step 4: Simplify right side
   65,370.48x = 3,345,019,949.28
5. Step 5: Solve for x
   x = 3,345,019,949.28/65,370.48
6. Step 6: Final answer
   x = 51,170.19