Finding the Fourth Proportional to 71,595.54, 98,802.72 and 39,767.40

Step by Step Solution

1. Step 1: Write the proportion equation
   71,595.54 : 98,802.72 = 39,767.40 : x
2. Step 2: Convert to fraction form
   71,595.54/98,802.72 = 39,767.40/x
3. Step 3: Cross multiply
   71,595.54x = 98,802.72 × 39,767.40
4. Step 4: Simplify right side
   71,595.54x = 3,929,127,287.33
5. Step 5: Solve for x
   x = 3,929,127,287.33/71,595.54
6. Step 6: Final answer
   x = 54,879.50