Finding the Fourth Proportional to 71,443.92, 98,582.06 and 39,613.05

Step by Step Solution

1. Step 1: Write the proportion equation
   71,443.92 : 98,582.06 = 39,613.05 : x
2. Step 2: Convert to fraction form
   71,443.92/98,582.06 = 39,613.05/x
3. Step 3: Cross multiply
   71,443.92x = 98,582.06 × 39,613.05
4. Step 4: Simplify right side
   71,443.92x = 3,905,136,170.92
5. Step 5: Solve for x
   x = 3,905,136,170.92/71,443.92
6. Step 6: Final answer
   x = 54,660.16