Finding the Fourth Proportional to 71,213.94, 98,275.86 and 39,383.37

Step by Step Solution

1. Step 1: Write the proportion equation
   71,213.94 : 98,275.86 = 39,383.37 : x
2. Step 2: Convert to fraction form
   71,213.94/98,275.86 = 39,383.37/x
3. Step 3: Cross multiply
   71,213.94x = 98,275.86 × 39,383.37
4. Step 4: Simplify right side
   71,213.94x = 3,870,434,556.45
5. Step 5: Solve for x
   x = 3,870,434,556.45/71,213.94
6. Step 6: Final answer
   x = 54,349.40