Finding the Fourth Proportional to 65,309.46, 90,128.06 and 36,635.48

Step by Step Solution

1. Step 1: Write the proportion equation
   65,309.46 : 90,128.06 = 36,635.48 : x
2. Step 2: Convert to fraction form
   65,309.46/90,128.06 = 36,635.48/x
3. Step 3: Cross multiply
   65,309.46x = 90,128.06 × 36,635.48
4. Step 4: Simplify right side
   65,309.46x = 3,301,884,105.75
5. Step 5: Solve for x
   x = 3,301,884,105.75/65,309.46
6. Step 6: Final answer
   x = 50,557.52