Finding the Fourth Proportional to 71,466.09, 98,619.89 and 39,634.30

Step by Step Solution

1. Step 1: Write the proportion equation
   71,466.09 : 98,619.89 = 39,634.30 : x
2. Step 2: Convert to fraction form
   71,466.09/98,619.89 = 39,634.30/x
3. Step 3: Cross multiply
   71,466.09x = 98,619.89 × 39,634.30
4. Step 4: Simplify right side
   71,466.09x = 3,908,730,306.23
5. Step 5: Solve for x
   x = 3,908,730,306.23/71,466.09
6. Step 6: Final answer
   x = 54,693.50