Finding the Fourth Proportional to 71,663, 98,894.22 and 39,834.68

Step by Step Solution

1. Step 1: Write the proportion equation
   71,663 : 98,894.22 = 39,834.68 : x
2. Step 2: Convert to fraction form
   71,663/98,894.22 = 39,834.68/x
3. Step 3: Cross multiply
   71,663x = 98,894.22 × 39,834.68
4. Step 4: Simplify right side
   71,663x = 3,939,419,607.55
5. Step 5: Solve for x
   x = 3,939,419,607.55/71,663
6. Step 6: Final answer
   x = 54,971.46