Finding the Fourth Proportional to 71,168.82, 106,740.27 and 31,718.58

Step by Step Solution

1. Step 1: Write the proportion equation
   71,168.82 : 106,740.27 = 31,718.58 : x
2. Step 2: Convert to fraction form
   71,168.82/106,740.27 = 31,718.58/x
3. Step 3: Cross multiply
   71,168.82x = 106,740.27 × 31,718.58
4. Step 4: Simplify right side
   71,168.82x = 3,385,649,793.22
5. Step 5: Solve for x
   x = 3,385,649,793.22/71,168.82
6. Step 6: Final answer
   x = 47,572.09