Finding the Fourth Proportional to 9,964.83, 13,750.27 and 5,715.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.83 : 13,750.27 = 5,715.67 : x
2. Step 2: Convert to fraction form
   9,964.83/13,750.27 = 5,715.67/x
3. Step 3: Cross multiply
   9,964.83x = 13,750.27 × 5,715.67
4. Step 4: Simplify right side
   9,964.83x = 78,591,982.85
5. Step 5: Solve for x
   x = 78,591,982.85/9,964.83
6. Step 6: Final answer
   x = 7,886.94