Finding the Fourth Proportional to 65,104.30, 89,850.63 and 39,612.49

Step by Step Solution

1. Step 1: Write the proportion equation
   65,104.30 : 89,850.63 = 39,612.49 : x
2. Step 2: Convert to fraction form
   65,104.30/89,850.63 = 39,612.49/x
3. Step 3: Cross multiply
   65,104.30x = 89,850.63 × 39,612.49
4. Step 4: Simplify right side
   65,104.30x = 3,559,207,182.37
5. Step 5: Solve for x
   x = 3,559,207,182.37/65,104.30
6. Step 6: Final answer
   x = 54,669.31