Finding the Fourth Proportional to 65,105.30, 89,852.01 and 39,613.49

Step by Step Solution

1. Step 1: Write the proportion equation
   65,105.30 : 89,852.01 = 39,613.49 : x
2. Step 2: Convert to fraction form
   65,105.30/89,852.01 = 39,613.49/x
3. Step 3: Cross multiply
   65,105.30x = 89,852.01 × 39,613.49
4. Step 4: Simplify right side
   65,105.30x = 3,559,351,699.61
5. Step 5: Solve for x
   x = 3,559,351,699.61/65,105.30
6. Step 6: Final answer
   x = 54,670.69