Finding the Fourth Proportional to 71,456.88, 98,609.94 and 39,625.86

Step by Step Solution

1. Step 1: Write the proportion equation
   71,456.88 : 98,609.94 = 39,625.86 : x
2. Step 2: Convert to fraction form
   71,456.88/98,609.94 = 39,625.86/x
3. Step 3: Cross multiply
   71,456.88x = 98,609.94 × 39,625.86
4. Step 4: Simplify right side
   71,456.88x = 3,907,503,677.05
5. Step 5: Solve for x
   x = 3,907,503,677.05/71,456.88
6. Step 6: Final answer
   x = 54,683.38