Finding the Fourth Proportional to 71,131.16, 98,163 and 39,302.12

Step by Step Solution

1. Step 1: Write the proportion equation
   71,131.16 : 98,163 = 39,302.12 : x
2. Step 2: Convert to fraction form
   71,131.16/98,163 = 39,302.12/x
3. Step 3: Cross multiply
   71,131.16x = 98,163 × 39,302.12
4. Step 4: Simplify right side
   71,131.16x = 3,858,014,005.56
5. Step 5: Solve for x
   x = 3,858,014,005.56/71,131.16
6. Step 6: Final answer
   x = 54,238.03