Finding the Fourth Proportional to 71,494.43, 98,659.01 and 39,228.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,494.43 : 98,659.01 = 39,228.25 : x
2. Step 2: Convert to fraction form
   71,494.43/98,659.01 = 39,228.25/x
3. Step 3: Cross multiply
   71,494.43x = 98,659.01 × 39,228.25
4. Step 4: Simplify right side
   71,494.43x = 3,870,220,105.84
5. Step 5: Solve for x
   x = 3,870,220,105.84/71,494.43
6. Step 6: Final answer
   x = 54,133.17