Finding the Fourth Proportional to 65,038.10, 89,756.02 and 39,540.28

Step by Step Solution

1. Step 1: Write the proportion equation
   65,038.10 : 89,756.02 = 39,540.28 : x
2. Step 2: Convert to fraction form
   65,038.10/89,756.02 = 39,540.28/x
3. Step 3: Cross multiply
   65,038.10x = 89,756.02 × 39,540.28
4. Step 4: Simplify right side
   65,038.10x = 3,548,978,162.49
5. Step 5: Solve for x
   x = 3,548,978,162.49/65,038.10
6. Step 6: Final answer
   x = 54,567.68