Finding the Fourth Proportional to 10,031.67, 15,056.70 and 5,104.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031.67 : 15,056.70 = 5,104.71 : x
2. Step 2: Convert to fraction form
   10,031.67/15,056.70 = 5,104.71/x
3. Step 3: Cross multiply
   10,031.67x = 15,056.70 × 5,104.71
4. Step 4: Simplify right side
   10,031.67x = 76,860,087.06
5. Step 5: Solve for x
   x = 76,860,087.06/10,031.67
6. Step 6: Final answer
   x = 7,661.74