Finding the Fourth Proportional to 71,469.56, 98,631.18 and 39,636.32

Step by Step Solution

1. Step 1: Write the proportion equation
   71,469.56 : 98,631.18 = 39,636.32 : x
2. Step 2: Convert to fraction form
   71,469.56/98,631.18 = 39,636.32/x
3. Step 3: Cross multiply
   71,469.56x = 98,631.18 × 39,636.32
4. Step 4: Simplify right side
   71,469.56x = 3,909,377,012.46
5. Step 5: Solve for x
   x = 3,909,377,012.46/71,469.56
6. Step 6: Final answer
   x = 54,699.89