Finding the Fourth Proportional to 31,740.72, 47,613.46 and 10,680.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,740.72 : 47,613.46 = 10,680.82 : x
2. Step 2: Convert to fraction form
   31,740.72/47,613.46 = 10,680.82/x
3. Step 3: Cross multiply
   31,740.72x = 47,613.46 × 10,680.82
4. Step 4: Simplify right side
   31,740.72x = 508,550,795.84
5. Step 5: Solve for x
   x = 508,550,795.84/31,740.72
6. Step 6: Final answer
   x = 16,022.03