Finding the Fourth Proportional to 71,196.36, 98,243.46 and 39,360.12

Step by Step Solution

1. Step 1: Write the proportion equation
   71,196.36 : 98,243.46 = 39,360.12 : x
2. Step 2: Convert to fraction form
   71,196.36/98,243.46 = 39,360.12/x
3. Step 3: Cross multiply
   71,196.36x = 98,243.46 × 39,360.12
4. Step 4: Simplify right side
   71,196.36x = 3,866,874,374.82
5. Step 5: Solve for x
   x = 3,866,874,374.82/71,196.36
6. Step 6: Final answer
   x = 54,312.81