Finding the Fourth Proportional to 71,629.94, 98,848.59 and 39,798.15

Step by Step Solution

1. Step 1: Write the proportion equation
   71,629.94 : 98,848.59 = 39,798.15 : x
2. Step 2: Convert to fraction form
   71,629.94/98,848.59 = 39,798.15/x
3. Step 3: Cross multiply
   71,629.94x = 98,848.59 × 39,798.15
4. Step 4: Simplify right side
   71,629.94x = 3,933,991,012.11
5. Step 5: Solve for x
   x = 3,933,991,012.11/71,629.94
6. Step 6: Final answer
   x = 54,921.05