Finding the Fourth Proportional to 71,573.37, 98,770.71 and 39,742.38

Step by Step Solution

1. Step 1: Write the proportion equation
   71,573.37 : 98,770.71 = 39,742.38 : x
2. Step 2: Convert to fraction form
   71,573.37/98,770.71 = 39,742.38/x
3. Step 3: Cross multiply
   71,573.37x = 98,770.71 × 39,742.38
4. Step 4: Simplify right side
   71,573.37x = 3,925,383,089.69
5. Step 5: Solve for x
   x = 3,925,383,089.69/71,573.37
6. Step 6: Final answer
   x = 54,844.18