Finding the Fourth Proportional to 71,472.27, 98,636.15 and 39,641.19

Step by Step Solution

1. Step 1: Write the proportion equation
   71,472.27 : 98,636.15 = 39,641.19 : x
2. Step 2: Convert to fraction form
   71,472.27/98,636.15 = 39,641.19/x
3. Step 3: Cross multiply
   71,472.27x = 98,636.15 × 39,641.19
4. Step 4: Simplify right side
   71,472.27x = 3,910,054,363.02
5. Step 5: Solve for x
   x = 3,910,054,363.02/71,472.27
6. Step 6: Final answer
   x = 54,707.29