Finding the Fourth Proportional to 65,096.70, 89,818.86 and 39,616.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,096.70 : 89,818.86 = 39,616.38 : x
2. Step 2: Convert to fraction form
   65,096.70/89,818.86 = 39,616.38/x
3. Step 3: Cross multiply
   65,096.70x = 89,818.86 × 39,616.38
4. Step 4: Simplify right side
   65,096.70x = 3,558,298,088.93
5. Step 5: Solve for x
   x = 3,558,298,088.93/65,096.70
6. Step 6: Final answer
   x = 54,661.73