Finding the Fourth Proportional to 71,185.50, 98,238.04 and 39,356.45

Step by Step Solution

1. Step 1: Write the proportion equation
   71,185.50 : 98,238.04 = 39,356.45 : x
2. Step 2: Convert to fraction form
   71,185.50/98,238.04 = 39,356.45/x
3. Step 3: Cross multiply
   71,185.50x = 98,238.04 × 39,356.45
4. Step 4: Simplify right side
   71,185.50x = 3,866,300,398.86
5. Step 5: Solve for x
   x = 3,866,300,398.86/71,185.50
6. Step 6: Final answer
   x = 54,313.03